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a 1500-w heater is designed to be plugged into a 120-v outlet.

A current of 4.00 A flows through the heating element of heater converting 500 J of electrical energy into thermal energy every second. What is the voltage across the ends of the heating element?

a. 2000 V
b. 125 V
c. 250 V
d. 0.008 V
e. 0.125 V

0 0 110
asked by John
Mar 1, 2013
Power = 500J/s = 500 Watts.

V*I = 500
V = 500/I = 500/4 = 125 Volts.

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posted by Henry
Mar 3, 2013