A 120 V potential difference is applied to a space heater whose resistance is 17 Q when hot. (a) At what rate is electrical energy transferred to thermal energy? (b) What is the cost for 4.4 h at US$0.05/kW-h?
A 120 V potential difference is applied to a space heater whose resistance is 17 Q when hot. (a) At what rate is electrical energy transferred to thermal energy? (b) What is the cost for 4.4 h at US$0.05/kW-h?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
Problem 57PQ
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Given that:-
Since,
(a)Hence, electrical energy is transferred to thermal energy at a rate of 847.06 Watts.
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