Question

three bulbs of 100 watt each are connected in series in an electric circuit.In another set of three bulbs of the same wattage are connected in parallel to the same source. Will the bulb in the two circuits glow with the same brightness? Justify your answer

Answer 1

No, though the bulbs are of same wattage they glow with different brightness if they are connected in series and parallel.
As the Voltage of the battery is divided among the bulbs they glow with a dim light compared with a single light connected

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Answer 2

The bulbs connected in series will have more equivalent resistance when compared to the bulbs connected in parallel.

In series pd will divide but current is constant so bulbs connected in series will glow brightly.

In parallel pd is constant but current will divide so the bulbs connected in parallel will glow with less brightness.

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