Question

A bulb of 100 W - 200 V is connected to a 160 V supply. Find the power consumed.

• A. 32 W
• B. 25 W
• C. 50 W
• D. 64 W

Answer 1

The correct option is D 64 W

$R=\frac{(200{)}^2}{100}=400\Omega$

$P_{consumed}=\frac{160\times 160}{400}=64W$