Question 4.
Electromagnetic induction means
a. Charging of an electric conductor.
b. Production of magnetic field due to a current flowing through a coil.
c. Generation of a current in a coil due to relative motion between the coil and the magnet.
d. Motion of the coil around the axle in an electric motor.
Answer:
C
When there is relative motion between coil and a magnet there is change in magnetic field lines which induces a current in the coil. This phenomenon is called electromagnetic induction discovered by Michael Faraday.
