How do u find voltage across the coil of a circuit??

Question

how do u calculate, not measure...smarty

Answer 1

You can't calculate the voltage if you don't know anything about the circuit.

My first guess is that you know the inductance of the coil (L), the AC current through the coil (I) and the frequency of the current (f). The voltage (V) is then given by V = 2xPixfxLxI.

My second guess is that you know the inductance of the coil (L) and the rate of change of a DC current through the coil (di/dt). The voltage (V) is then given by V = Lxdi/dt.

My third guess is that you know something about the number of turns and the magnetic field or something about various other components in the circuit. In that case, my guess is that the problem is entirely too complicated for you to understand any explanation that anyone here is likely to offer.

Answer 2

how can you expect us to calculate it when you give us no information at all?

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Answer 3

use a multimeter.