An electric heater operating at 120. volts draws

8.00 amperes of current through its 15.0 ohms of

resistance. The total amount of heat energy

produced by the heater in 60.0 seconds is

(1) 7.20 * 10^3 J (3) 8.64 * 10^4 J

(2) 5.76 * 10^4 J (4) 6.91 * 10^6 J

Question

Guest

Physics

18 March, 11:41

An electric heater operating at 120. volts draws

8.00 amperes of current through its 15.0 ohms of

resistance. The total amount of heat energy

produced by the heater in 60.0 seconds is

(1) 7.20 * 10^3 J (3) 8.64 * 10^4 J

(2) 5.76 * 10^4 J (4) 6.91 * 10^6 J

+1

Answers (1)

Know the Answer?

Draven Padilla · Answer 1

Ohms law says that V = IR

The amount of work done is P = IV or P = I^2R (using Ohm's law to substitute)

Therefore P = 64*15 = 960W

So the total energy released is Pt = 960*60 = 57600J

An electric heater operating at 120. volts draws8.00 amperes of current through its 15.0 ohms ofresistance. The total amount of heat energyproduced by the heater in 60.0 seconds is(1) 7.20 * 10^3 J (3) 8.64 * 10^4 J(2) 5.76 * 10^4 J (4) 6.91 * 10^6 J

An electric heater operating at 120. volts draws

8.00 amperes of current through its 15.0 ohms of

resistance. The total amount of heat energy

produced by the heater in 60.0 seconds is

(1) 7.20 * 10^3 J (3) 8.64 * 10^4 J

(2) 5.76 * 10^4 J (4) 6.91 * 10^6 J