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# An a.c of 1A at a frequency of 800 cycles per second flows through a coil, the inductan...

### Question

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

### Explanation:

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

## Dicussion (1)

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