A 120 v potential difference is applied to a space heater


(A) A 120 V potential difference is applied to a space heater whose resistance is 19 ? when hot. At what rate is electrical energy transferred to heat?

(B) At 4.7cents/k W/h, what does it cost to operate the device for 16.0h? (Enter dollars with no unit)

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Physics: A 120 v potential difference is applied to a space heater
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