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A 50 W bulb is connected in (i) series; (ii) parallel with a room heater, is connected across that mains. If 50 W bulb is now replaced by 150 W bulb

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A 50 W bulb is connected in (i) series; (ii) parallel with a room heater, is connected across that mains. If 50 W bulb is now replaced by 150 W bulb in each of the two cases, will the heat produced by heater by smaller, remain the same or be larger?

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(i) In series, the output of heater will increase.

(ii) In parallel, output of heater will remain the same.

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