Question

Vaibhav performed an activity to observe an important breakthrough made by
the English Physicist faraday. He took a coil of wire AB having a large number
of turns and connected the ends of the coil to galvanometer. He observed a
momentary deflection in the needle of the galvanometer, say to the right when
the North pole of a strong magnet was moved towards the end B of the coil.



(i) Name the phenomenon discovered by faraday.

a) Eletromotive force
b) Electromagnetic induction

c) Inductance

d) Reluctance


(ii) What happens to the deflection in the galvanometer when the motion

of the magnets stops?

a) Deflection towards left

b) Deflection towards right

c) Deflection can be in any direction

d) Deflection of the galvanometer becomes zero


(iii)Why does Vaibhav observe momentary deflection in the galvanometer?

a) Due to light

b) Due to compass

c) Due to magnet

d) Due to induced current


(iv)What will be observed when the north pole of the magnet is withdrawn
away from the coil?

a) Deflection towards left

b) Deflection towards right

c) Deflection can be in any direction

d) No deflection will observed


(v) What is the function of galvanometer in the circuit?

a) To detect current

b) To measure potential difference

c) To measure power

d) To measure energy​

Answer 1

Answer:

1. b

2.a

3.d

4.d

5.a

Explanation:

All u have to do is know about both the rules of Faraday