PHYSICS

JAMB 2016 - Question 31

Physics 2016 JAMB Past Questions - Question 31: The principles of operation of an induction coil is based on

Choose the correct answers from the options given.
The principles of operation of an induction coil is based on
A:
B:
C:
D:
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Correct Answer

A

Explanation

the phenomenon of electromagnetic induction. An induction coil consists of two separate coils of wire, known as the primary coil and the secondary coil. When an electric current flows through the primary coil, it creates a changing magnetic field around it.

This changing magnetic field induces an electric current in the secondary coil through electromagnetic induction. The induced current in the secondary coil is proportional to the rate of change of the magnetic field and the number of turns in the coil.

The primary coil is usually connected to a power source, such as a battery or an alternating current (AC) power supply. The secondary coil is connected to a load, such as a light bulb or an electronic device.

The induction coil operates on the principle that a changing magnetic field induces an electric current in a nearby conductor. This principle is fundamental to many electrical devices and is widely used in transformers, electric motors, generators, and other applications.