A) 1/2
B) 2
C) 1/4
D) 2
Correct Answer: A
Solution :
Electric power \[P=\frac{{{V}^{2}}}{R}\] or \[P\propto \frac{1}{R}\] or \[\frac{{{P}_{2}}}{{{P}_{1}}}=\frac{{{R}_{1}}}{{{R}_{2}}}=\frac{R}{2R}\] \[{{P}_{2}}=\frac{P}{2}\]
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