Question

An electric clothes dryer draws 20 A of current from a 240-V wall outlet. How much power, in watts, does it use?

Answer 1

The answer is 4800 watts. 

Answer 2

Answer:

Power, P = 4800 watts

Explanation:

Given that,

Current drawn by an electric clothes dryer, I = 20 A

Voltage, V = 240 volts

We have to find the power used by the dryer. It is given by :

Power of an electrical appliance is given by the product of voltage and current flowing.

P = V × I

P = 240 V × 20 A

P = 4800 watts

Hence, the power of the electric clothes dryer is 4800 watts.