A wire of length L carries a current i. If the wire is turned into a circular coil and kept in a uniform magnetic field , the maximum magnitude of torque in the given magnetic field will be

Question:

Options :

(a) (BiL ^ 2)/2
(b )(BiL ^ 2)/(4π)
(c) (BL ^ 2)/(4π)
(d) (d) (B ^ 2 L ^ 2)/2

Answer :

Ans : – (b )(BiL ^ 2)/(4π)

Answer Steps :

Step 1: –

Step 2: –

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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