You charge your phone (which uses 110V
and 3 A) for 5 hours. SDGE charges you 65
cents for each Kwh. How much does it cost for
you to charge your phone?

Respuesta :

Answer:21.45 cents

Explanation:

Current=3

Voltage=110v

Power=current x voltage

Power=3 x 110

Power=330 watts

Power=330/1000

Power=0.33 kilowatts

SDGE charge 1kw 65 cents

For 0.33kw SDGE charges 0.33 x 65=21.45 cents