Acar radio draws 0.27 a of current in the autos 12-v electrical system. (a) how much electric power does the radio use?
(b) what is the effective resistance of the radio?

(a) 3.24 w (b) 44.44 ohm

Explanation:

It is given that car draws 0.27 A current so current I = 0.27 A

The system has a voltage of 12 V

(a) Electrical power = voltage ×current

(b) The resistance is defined as the ratio of voltage and current

So resistance

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