Question

(iv)What will be observed if the number of cells are increased in the circuit shown in Fig. 14.11B?​

Answer 1

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(i)The defection in the magnetic compass indicates that current is flowing through the circuit. The compass needle deflects due to magnetic effect produced by the current.

(ii) the bulb did not glow in circuit A because the current passing through circuit is weak. if the current through the circuit is weak, the filament of the bulb does not get heated sufficiently and it does not glow. This indicates the solution is weak conductor of electricity.

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