Calculate the power dissipated in a toaster that has a resistance of 14 ohms plugged into a 120- V outlet.?

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Calculate the power dissipated in a toaster that has a resistance of 14 ohms plugged into a 120- V outlet.?

2007-04-22 14:10:54 · 2 answers · asked by Jackie3421 2 in Science & Mathematics ➔ Physics

2 answers

P = V.I = V^2/R = 120V^2 / 14 ohm = 1029 Watts

2007-04-22 14:13:52 · answer #1 · answered by catarthur 6 · 0⤊ 0⤋

For a purely resistance circuit: Power = Voltage * Current

Current = Voltage / Resistance = 120 V / 14 â¦ = 8.57 amps

Power = Voltage * Current = 120 * 8.57 = 1028 watts.

I highly recommend that you master Ohm's Law.

2007-04-22 14:20:54 · answer #2 · answered by Thomas C 6 · 0⤊ 0⤋