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An electric bulb consumed 25 W power when it is operated at 110 V. What should be the correct rating of the bulb? Only one correct answer:

a. 60 W, 220 V
b. 100 W, 220 V
c. 150 W, 220 V
d. 80 W, 220 V

Answer :

Electric power is calculated using the formula P = VI. For a bulb operating at 110 V with a power of 25 W, the correct rating at 220 V would be 60 W.

Electric power is calculated using the formula P = VI, where P is power in watts, V is voltage in volts, and I is current in amperes. If a bulb has a power of 25 W at 110 V, then the correct rating for a bulb at 220 V would be 60 W, as power increases with voltage.

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