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

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.

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it