Question

calculate current passing through a bulb rated 60w 240v when it is connected to a 240v power supply

Answer 1

Hey guys

$p = \frac{{v}^{2} }{r}$
We find the resistance of the bulb
R=V^2/P
R=240×240/60=240×4ohm

Then use OHMs law

V=IR
I=V/R=240/240×4==》0.25A


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Hope it helps....

Answer 2

Explanation:

I hope it helps you.....