Electromagnetic Induction

Who discovered the phenomenon of electromagnetic induction?

Which of the following factors does NOT affect the magnitude of induced emf in a coil?

The unit of magnetic flux is:

According to Faraday's law, the induced emf in a coil is equal to:

In a coil of 50 turns, the magnetic flux changes from 0.2 Wb to 0.05 Wb in 0.1 seconds. What is the magnitude of the induced emf?

Lenz's law is a consequence of which fundamental principle?

A rectangular coil of area 0.1 m² and 100 turns is rotated in a uniform magnetic field of 0.5 T at an angular velocity of 50 rad/s. What is the maximum induced emf?

A coil is connected to a galvanometer. When a bar magnet is pushed into the coil, the galvanometer shows a deflection. What happens if the magnet is held stationary inside the coil?

The self-inductance of a solenoid depends on:

In a transformer, the ratio of primary to secondary voltage is 10:1. If the primary coil has 1000 turns, how many turns are there in the secondary coil?