The iron core of an induction coil is made from bundles of wire so as to

Assessment: JAMB UTME - Physics - 1998 Subject: Physics

Question 1 Report

The iron core of an induction coil is made from bundles of wire so as to
Answer Details
An induction coil is a device that converts low voltage into high voltage, and it does this by inducing an electric current in a coil of wire. The iron core of an induction coil is made from bundles of wire so as to minimize eddy-currents. Eddy currents are small, swirling currents of electricity that can be generated in the core of the coil when an alternating current is passed through it. These eddy currents can cause heating, energy loss, and interfere with the operation of the coil. By making the core from bundles of wire, the eddy currents are minimized, and the induction coil operates more efficiently. Therefore, the correct option is "minimize eddy-currents."

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