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Does a semiconductor follow Ohm's law?
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Ohm's law is valid for metals, but is it valid for semiconductors? Does it work there?
I am not talking about a PN junction here.
If I have a block of silicon and pass voltage across it, will I see current flowing, in accordance with Ohm's law?
semiconductors ohms-law
edited 57 mins ago
Hearth
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
Ohm's law is valid for metals, but is it valid for semiconductors? Does it work there?
I am not talking about a PN junction here.
If I have a block of silicon and pass voltage across it, will I see current flowing, in accordance with Ohm's law?
semiconductors ohms-law
edited 57 mins ago
Hearth
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago
add a comment |
$begingroup$
Ohm's law is valid for metals, but is it valid for semiconductors? Does it work there?
I am not talking about a PN junction here.
If I have a block of silicon and pass voltage across it, will I see current flowing, in accordance with Ohm's law?
semiconductors ohms-law
edited 57 mins ago
Hearth
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Ohm's law is valid for metals, but is it valid for semiconductors? Does it work there?
I am not talking about a PN junction here.
If I have a block of silicon and pass voltage across it, will I see current flowing, in accordance with Ohm's law?
semiconductors ohms-law
semiconductors ohms-law
edited 57 mins ago
Hearth
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 57 mins ago
Hearth
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 57 mins ago
Hearth
5,27011340
edited 57 mins ago
Hearth
5,27011340
edited 57 mins ago
Hearth
5,27011340
5,27011340
asked 1 hour ago
Shaona BoseShaona Bose
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Shaona BoseShaona Bose
1063
asked 1 hour ago
Shaona BoseShaona Bose
1063
1063
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Shaona Bose is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago
add a comment |
$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago
$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago
$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Yes. All materials under normal conditions follow ohm's law, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow.
Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples, electrochemical cells, et cetera. They can also be observed in discharge phenomena, where the flow of current causes ionization and chemical changes in the conducting material.
Edit: it's worth mentioning that the presence of (changing) magnetic fields can complicate things. Transformers and inductors are not generally considered to obey ohm's law under dynamic conditions, for instance.
For further information on where it gets murky, see this question.
answered 1 hour ago
HearthHearth
5,27011340
$endgroup$
add a comment |
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1 Answer
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$begingroup$
Yes. All materials under normal conditions follow ohm's law, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow.
Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples, electrochemical cells, et cetera. They can also be observed in discharge phenomena, where the flow of current causes ionization and chemical changes in the conducting material.
Edit: it's worth mentioning that the presence of (changing) magnetic fields can complicate things. Transformers and inductors are not generally considered to obey ohm's law under dynamic conditions, for instance.
For further information on where it gets murky, see this question.
answered 1 hour ago
HearthHearth
5,27011340
$endgroup$
add a comment |
$begingroup$
Yes. All materials under normal conditions follow ohm's law, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow.
Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples, electrochemical cells, et cetera. They can also be observed in discharge phenomena, where the flow of current causes ionization and chemical changes in the conducting material.
Edit: it's worth mentioning that the presence of (changing) magnetic fields can complicate things. Transformers and inductors are not generally considered to obey ohm's law under dynamic conditions, for instance.
For further information on where it gets murky, see this question.
answered 1 hour ago
HearthHearth
5,27011340
$endgroup$
add a comment |
$begingroup$
Yes. All materials under normal conditions follow ohm's law, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow.
Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples, electrochemical cells, et cetera. They can also be observed in discharge phenomena, where the flow of current causes ionization and chemical changes in the conducting material.
Edit: it's worth mentioning that the presence of (changing) magnetic fields can complicate things. Transformers and inductors are not generally considered to obey ohm's law under dynamic conditions, for instance.
For further information on where it gets murky, see this question.
answered 1 hour ago
HearthHearth
5,27011340
$endgroup$
Yes. All materials under normal conditions follow ohm's law, though it becomes less useful in good insulators where breakdown occurs before any substantial amount of current can flow.
Non-ohmic effects occur at boundaries between different materials, such as pn junctions, schottky junctions, thermocouples, electrochemical cells, et cetera. They can also be observed in discharge phenomena, where the flow of current causes ionization and chemical changes in the conducting material.
Edit: it's worth mentioning that the presence of (changing) magnetic fields can complicate things. Transformers and inductors are not generally considered to obey ohm's law under dynamic conditions, for instance.
For further information on where it gets murky, see this question.
answered 1 hour ago
HearthHearth
5,27011340
edited 1 hour ago
answered 1 hour ago
HearthHearth
5,27011340
answered 1 hour ago
HearthHearth
5,27011340
answered 1 hour ago
HearthHearth
5,27011340
5,27011340
add a comment |
add a comment |
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$begingroup$
Yes. In fact, the very first chapter of any book on microelectronics starts out at the beginning analyzing semiconductor behavior with the assumption of the Drude model and the application of Ohm's Law (though you'd have to put some of the equations together to produce Ohm's law, since they will be using volts/meter, usually.)
$endgroup$
– jonk
1 hour ago