Question

Three incandecent bulbs of 100 watt each are connected in series in an electric circuit in another circuit another set of three bulbs of the same wattage are connected in parallel to the same source . (a) will the bulb in the two circuits glow with the same brightness justify your answer (b) now let one bulb in both the circuit get fused will the rest of the bulbs continue to glow in each circuit give reason

Answer 1

Answer:

Explanation:

Ans. Voltage gets divided in series combination. So bulbs in series combination will glow with less brightness. Voltage does not get divided in parallel combination, so bulbs in parallel combination will glow with more brightness.

(b) Now let one bulb in both the circuits get fused. Will the rest of the bulbs continue to glow in each circuit? Give reason.

Ans. In case of series combination, fault in even a single component will break the circuit.

So, when one of the bulbs gets fused: another bulb would continue to glow.