If a 5 W LED light bulb operates at 220 V power supply for 1 minute, then the electric currentpassing through the bulb will be
Correct answer: C. 0.022 A.
- A. 18.333 A.
- B. 0.44 A.
- C. 0.022 A.
- D. 0.000484 A.
Explanation
The correct answer is Option C: 0.022 A. To find the electric current flowing through the bulb, use the formula P = IV, where P is power (5 W), I is current, and V is voltage (220 V). Rearrange the formula to solve for current: I = P/V. Substituting the given values, I = 5 W / 220 V = 0.0227 A, which rounds to 0.022 A.Option A (18.333 A) is incorrect because such a high current does not correspond with the power and voltage values given. Option B (0.44 A) results from a miscalculation or incorrect use of the formula. Option D (0.000484 A) is incorrect, likely due to a mistake in calculation or unit conversion.
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