An a.c of 1A at a frequency of 800 cycles per second flows through a...

JAMB 2019

An a.c of 1A at a frequency of 800 cycles per second flows through a coil, the inductance of which is 2.5mH and the resistance of which is 5Ω. What is the power absorbed in the Coil?

A. 5W
B. 6W
C. 7W
D. 8W

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Correct Answer: Option A

Explanation

I = 1A, F = 800 cycles/s = 800Hz
R = 5Ω, L = 2.5mH
P = I\(^2\)R = I\(^2\) × 5 = 5W

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An a.c of 1A at a frequency of 800 cycles per second flows through a...

Correct Answer: Option A

Explanation

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