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Is there any difference between voltage drop and voltage across a component?
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Voltage drop across a component describes the reduction of energy when current moves through passive elements, is this the same as voltage across?
What about for capacitors, technically current does not actually travel through the dielectric, can this term still be used for capacitors?
voltage capacitor electricity
asked 4 hours ago
zenarthra
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up vote
1
down vote
favorite
Voltage drop across a component describes the reduction of energy when current moves through passive elements, is this the same as voltage across?
What about for capacitors, technically current does not actually travel through the dielectric, can this term still be used for capacitors?
voltage capacitor electricity
asked 4 hours ago
zenarthra
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Voltage drop across a component describes the reduction of energy when current moves through passive elements, is this the same as voltage across?
What about for capacitors, technically current does not actually travel through the dielectric, can this term still be used for capacitors?
voltage capacitor electricity
asked 4 hours ago
zenarthra
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Voltage drop across a component describes the reduction of energy when current moves through passive elements, is this the same as voltage across?
What about for capacitors, technically current does not actually travel through the dielectric, can this term still be used for capacitors?
voltage capacitor electricity
voltage capacitor electricity
asked 4 hours ago
zenarthra
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
zenarthra
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
zenarthra
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
zenarthra
333
asked 4 hours ago
zenarthra
333
333
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
zenarthra is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago
add a comment |Â
2
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago
2
2
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago
add a comment |Â
3 Answers
3
active
oldest
votes
up vote
1
down vote
accepted
Voltage drop across a component describes the reduction of energy when
current moves through passive elements, is this the same as voltage
across?
Voltage drop and Voltage across the component mean the same thing, assuming the same component and the voltage across that component.
What about for capacitors, technically current does not actually
travel through the dielectric, can this term still be used for
capacitors?
You can measure voltage across capacitors, which is dependent on the time value of the current.
answered 4 hours ago
laptop2d
21.9k123073
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
add a comment |Â
up vote
5
down vote
Yes, they're the same, although I think that most people would want to reserve the phrase "voltage drop" for the voltage developed by running current through a dissipative element such as a resistor, relay, or diode junction.
As a counter-example, referring to a "-9V drop across the battery" would be somewhere between odd and positively strange.
answered 4 hours ago
TimWescott
5096
add a comment |Â
up vote
0
down vote
Along with the other fine answers, I would add that one term may be more suitable than the other, depending on how it is used.
For example, I was recently teaching some basics to a beginner and the conversation included statements such as:
“Due to the voltage drop of R1, the voltage at point A is now...â€Â
and,
“What is the voltage across R1?â€Â...
In the first case, I used “voltage drop†to help keep focus on the fact that our reference for the calculation we’re interested in (i.e. the voltage at point A) is still ground.
And I used the other to imply that the reference is just beyond the element R1.
answered 34 mins ago
Blair Fonville
2,4852827
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
Voltage drop across a component describes the reduction of energy when
current moves through passive elements, is this the same as voltage
across?
Voltage drop and Voltage across the component mean the same thing, assuming the same component and the voltage across that component.
What about for capacitors, technically current does not actually
travel through the dielectric, can this term still be used for
capacitors?
You can measure voltage across capacitors, which is dependent on the time value of the current.
answered 4 hours ago
laptop2d
21.9k123073
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
add a comment |Â
up vote
1
down vote
accepted
Voltage drop across a component describes the reduction of energy when
current moves through passive elements, is this the same as voltage
across?
Voltage drop and Voltage across the component mean the same thing, assuming the same component and the voltage across that component.
What about for capacitors, technically current does not actually
travel through the dielectric, can this term still be used for
capacitors?
You can measure voltage across capacitors, which is dependent on the time value of the current.
answered 4 hours ago
laptop2d
21.9k123073
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
add a comment |Â
up vote
1
down vote
accepted
up vote
1
down vote
accepted
Voltage drop across a component describes the reduction of energy when
current moves through passive elements, is this the same as voltage
across?
Voltage drop and Voltage across the component mean the same thing, assuming the same component and the voltage across that component.
What about for capacitors, technically current does not actually
travel through the dielectric, can this term still be used for
capacitors?
You can measure voltage across capacitors, which is dependent on the time value of the current.
answered 4 hours ago
laptop2d
21.9k123073
Voltage drop across a component describes the reduction of energy when
current moves through passive elements, is this the same as voltage
across?
Voltage drop and Voltage across the component mean the same thing, assuming the same component and the voltage across that component.
What about for capacitors, technically current does not actually
travel through the dielectric, can this term still be used for
capacitors?
You can measure voltage across capacitors, which is dependent on the time value of the current.
answered 4 hours ago
laptop2d
21.9k123073
edited 3 hours ago
answered 4 hours ago
laptop2d
21.9k123073
answered 4 hours ago
laptop2d
21.9k123073
answered 4 hours ago
laptop2d
21.9k123073
21.9k123073
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
add a comment |Â
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
But isnt it more sensible to say voltage stored for a capacitor?
– zenarthra
4 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
@zenarthra - it's far more sensible to say charge stored in a capacitor.
– brhans
3 hours ago
2
2
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@lap: Check your last sentence. Should it be "You can measure voltage across capacitors ..."?
– Transistor
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@Transistor yeah, that was stupid, fixed
– laptop2d
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
@brhans I think it makes the most sense to say that energy is stored in a capacitor. The capacitor as a whole remains charge neutral.
– Elliot Alderson
3 hours ago
add a comment |Â
up vote
5
down vote
Yes, they're the same, although I think that most people would want to reserve the phrase "voltage drop" for the voltage developed by running current through a dissipative element such as a resistor, relay, or diode junction.
As a counter-example, referring to a "-9V drop across the battery" would be somewhere between odd and positively strange.
answered 4 hours ago
TimWescott
5096
add a comment |Â
up vote
5
down vote
Yes, they're the same, although I think that most people would want to reserve the phrase "voltage drop" for the voltage developed by running current through a dissipative element such as a resistor, relay, or diode junction.
As a counter-example, referring to a "-9V drop across the battery" would be somewhere between odd and positively strange.
answered 4 hours ago
TimWescott
5096
add a comment |Â
up vote
5
down vote
up vote
5
down vote
Yes, they're the same, although I think that most people would want to reserve the phrase "voltage drop" for the voltage developed by running current through a dissipative element such as a resistor, relay, or diode junction.
As a counter-example, referring to a "-9V drop across the battery" would be somewhere between odd and positively strange.
answered 4 hours ago
TimWescott
5096
Yes, they're the same, although I think that most people would want to reserve the phrase "voltage drop" for the voltage developed by running current through a dissipative element such as a resistor, relay, or diode junction.
As a counter-example, referring to a "-9V drop across the battery" would be somewhere between odd and positively strange.
answered 4 hours ago
TimWescott
5096
answered 4 hours ago
TimWescott
5096
answered 4 hours ago
TimWescott
5096
answered 4 hours ago
TimWescott
5096
5096
add a comment |Â
add a comment |Â
up vote
0
down vote
Along with the other fine answers, I would add that one term may be more suitable than the other, depending on how it is used.
For example, I was recently teaching some basics to a beginner and the conversation included statements such as:
“Due to the voltage drop of R1, the voltage at point A is now...â€Â
and,
“What is the voltage across R1?â€Â...
In the first case, I used “voltage drop†to help keep focus on the fact that our reference for the calculation we’re interested in (i.e. the voltage at point A) is still ground.
And I used the other to imply that the reference is just beyond the element R1.
answered 34 mins ago
Blair Fonville
2,4852827
add a comment |Â
up vote
0
down vote
Along with the other fine answers, I would add that one term may be more suitable than the other, depending on how it is used.
For example, I was recently teaching some basics to a beginner and the conversation included statements such as:
“Due to the voltage drop of R1, the voltage at point A is now...â€Â
and,
“What is the voltage across R1?â€Â...
In the first case, I used “voltage drop†to help keep focus on the fact that our reference for the calculation we’re interested in (i.e. the voltage at point A) is still ground.
And I used the other to imply that the reference is just beyond the element R1.
answered 34 mins ago
Blair Fonville
2,4852827
add a comment |Â
up vote
0
down vote
up vote
0
down vote
Along with the other fine answers, I would add that one term may be more suitable than the other, depending on how it is used.
For example, I was recently teaching some basics to a beginner and the conversation included statements such as:
“Due to the voltage drop of R1, the voltage at point A is now...â€Â
and,
“What is the voltage across R1?â€Â...
In the first case, I used “voltage drop†to help keep focus on the fact that our reference for the calculation we’re interested in (i.e. the voltage at point A) is still ground.
And I used the other to imply that the reference is just beyond the element R1.
answered 34 mins ago
Blair Fonville
2,4852827
Along with the other fine answers, I would add that one term may be more suitable than the other, depending on how it is used.
For example, I was recently teaching some basics to a beginner and the conversation included statements such as:
“Due to the voltage drop of R1, the voltage at point A is now...â€Â
and,
“What is the voltage across R1?â€Â...
In the first case, I used “voltage drop†to help keep focus on the fact that our reference for the calculation we’re interested in (i.e. the voltage at point A) is still ground.
And I used the other to imply that the reference is just beyond the element R1.
answered 34 mins ago
Blair Fonville
2,4852827
edited 8 mins ago
answered 34 mins ago
Blair Fonville
2,4852827
answered 34 mins ago
Blair Fonville
2,4852827
answered 34 mins ago
Blair Fonville
2,4852827
2,4852827
add a comment |Â
add a comment |Â
zenarthra is a new contributor. Be nice, and check out our Code of Conduct.
zenarthra is a new contributor. Be nice, and check out our Code of Conduct.
zenarthra is a new contributor. Be nice, and check out our Code of Conduct.
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2
I usually refer to drop when current is flowing and otherwise across.
– PlasmaHH
4 hours ago
"Drop" often is used when the component is something like a diode or a resistor, or a pass transistor that has been placed in series with some "load." The question then is, by how much does the voltage across the load drop when the component is inserted into the circuit?
– Solomon Slow
3 hours ago