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Objective Questions:

1. We can induce the current in a coil by
(a) moving the coil in a magnetic field
(b) by changing the magnetic field around it
(c) by changing the orientation of the coil in the magnetic field
(d) All of above

2. A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential
difference
(a) more in (i) than in (ii) case
(b) more in (ii) than in (i) case
(c) same in both
(d) can’t say

Subjective Questions:

3. How is the induced current in a secondary coil related to current in a primary coil?

4.Write any one method to induce current in a coil.

5.Explain briefly different methods of producing induced emf.

6.Two coils C and C are wrapped around a non- conducting cylinder. Coil C is
1
2
1
connected to a battery and key and C with galvanometer G. On pressing the key (K),
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current starts flowing in the coil C 1 State your observation in the galvanometer.

a. What key K is pressed on.

b. When current in the coil C is switched off.
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c. When the current is passed continuously through

coil C
1.

d. Name and state the phenomenon responsible for