The expected answers were:

1. Faraday’s Law of electromagnetism states that whenever magnetic flux linked with a circuit changes, an emf is always induced in the circuit.

OR If there is a relative motion between a conductor and a magnetic field, an emf is induced in the conductor.

1. (i) l = 0.4 m; v = 10 m/s;  i = 10 A;  B = 0.5 T

F = Bil = 0.5 x 0.4 x 10 = 2 N

(ii) Induced emf, E = Blv
                            = 0.5 x 0.4 x 10 = 2 V

(iii) Power dissipated, P = Blv x i
       = 0.5 x 0.4 x 10 x 10 = 20 W
The question was on Electromagnetic Field. The question was unpopular with the candidates. The candidates were reported to show shallow knowledge of this topic.