The ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V la

Question

The ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V lamp will be nearly

Options:

A . 4

B . 2

C . 1 / 2

D . 1 / 4

Answer: Option A

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