A 40 W bulb is connected in series with a room heater. If now 40 W bulb is repla

Question

A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will:

Options:

A . Decrease

B . Increase

C . Remain same

D . Heater will burn out

Answer: Option B

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