Question

Certain factors that influence the induced emf in electromagnetic induction are listed below:
i. Increasing the speed of magnet.
ii. Decreasing the strength of magnet.
iii. Increasing the number of turns.
iv. Reducing the speed of rotation of the magnet.
v. Increasing the strength of magnetic field.
vi. Using solenoid with less number of turns.
Which of the above ideas can be used to get maximum emf by electromagnetic induction ?

Answer 1

In i, iii and v we can increase the emf produced by electromagnetic induction because the induced emf is directly proportional to speed, number of turns and magnetic field.