All Questions
4
questions
1
vote
1
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179
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Are we always allowed to treat an inductor as a battery with the same voltage?
When there is an induced emf, Kirchhoff's Loop Rule no longer is true, because electric fields are nonconservative when there is an induced current, as stated by Faraday's Law:
However, I have seen ...
- 323
0
votes
1
answer
580
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Inductor EMF direction
I have some serious troubles with understanding the EMF in inductor.
Assume we change the current from value $I_0$ to zero by rotating the tumbler of the source.
Then why should we consider the EMF ...
- 258
2
votes
1
answer
475
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How can I provide a solenoid with the current it needs to accelerate a ferrous projectile to a given velocity?
My question upon first glance looks quite elementary, however my specialisation in physics is not circuitry and such I am not sure of my calculations.
A little bit of background: I am trying to ...
- 103
2
votes
3
answers
3k
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Why is the emf over an inductor equal to that of the battery? [duplicate]
In a hypothetical circuit with only an inductor and a DC voltage source (no resistance), why is the voltage across the inductor the same as the source voltage?
I get that the charges coming from the ...
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