An electric bulb draws a current of 0.5 A at 220 V. What is the power consumed by the bulb?
440 W
110 W
55 W
220 W
Correct Answer: B — 110 W
Explanation:
Power P=VI=220×0.5=110P = VI = 220 \times 0.5 = 110P=VI=220×0.5=110 W.
