Question

43. Observing that the bulb does not glow in the circuit shown in Figure A,
Boojho changed the circuit as shown in Figure B. He observed deflection in the
magnetic compass.
M
What does the deflection in the magnetic compass indicate?
(1) Why did the bulb not glow in Figure A?
(iii) What will be observed if the number of cells is increased in the circuit shown
in Figure B?
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Answer 1

Answer:

1) It shows there is electricity in circuit

2) Wire is not connected with the plates.

3) the magnet will deflect more.