The insulated wiring in a house can safely carry a maximum current of 18 A. The electrical outlets in the house provide an alternating voltage of 120 V. A space heater when plugged into the outlet operates at an average power of 1500 W. How many space heaters can safely be plugged into a single electrical outlet and turned on for an extended period of time?
a) zero
b) one
c) two
d) three
e) four
a) zero
b) one
c) two
d) three
e) four
-
1500 watts / 120 volts = 12.5 amps
so only one can be plugged in.
so only one can be plugged in.