A steady current is passing through a coil, magnitude of self- induced emf in it,will be:A. zero ⃝ B. maximum ⃝C.  = LIt ⃝ D.  =  ILt

Question

A steady current is passing through a coil, magnitude of self- induced emf in it,will be:A. zero ⃝ B. maximum ⃝C.  = LIt ⃝ D.  =  ILt
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Solution 1

The answer is A. Zero.

Here's why:

Self-induced emf in a coil is the emf induced in the coil due to its own changing magnetic field. This is given by Faraday's law of electromagnetic induction as ε = -L (dI/dt), where L is the inductance of the coil and dI/dt is the rate of change of current.

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