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Inductors - Technical MCQs

Q1:

Electromagnetism is the:

A magnetic field caused by a permanent magnet

B action between a permanent and an artificial magnet

C magnetic field action with a current-carrying wire

D current in the coil

ANS:C - magnetic field action with a current-carrying wire

When a current flow in the wire or coil. Magnetic field or lines around in it. Magnetic field depends on the current carried in the coil.