- #1

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- Thread starter B4ssHunter
- Start date

- #1

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- #2

K^2

Science Advisor

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Once with close the circuit with the switch, current is going to start flowing. The increasing magnetic field in the inductor will induce electric field, which will cause back EMF. What does that mean? It means that the total voltage drop across the inductor is going to be V

These equations are pretty easy to solve. Just substituting the voltages we know, we get the equation: V - V

- #3

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just a couple of questions

shouldn't Vi = Vemf - IR2 ? since these potential differences are opposite * like two opposing batteries *

now the important one , how much of the original V does the induced Emf reach ? when does V = Vemf ?

- #4

K^2

Science Advisor

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Of course, this is down to sign convention. You just have to make sure you are consistent.

- #5

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if the inductor is alone in the circuit with no other resistors , and even the resistance of the inductor = 0 , the voltage across the conductor must always = to 12 voltage correct ? no matter how the flux changes through time

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