A 27 W light bulb is connected to a 7.8 V battery. How much current flows through
the bulb?

3.46 A

Explanation:

electrical power = current × voltage

P = I × V

We have,

V = 7.8

P = 27

Thus, I  = P ÷ V

I = 27 / 7.8

= 3.46 A

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