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For all parts of this problem, you must assume that the refrigerator operates as an ideal Carnot engine in reverse between the respective temperatures.

If the temperatures inside and outside of the refrigerator do not change, how much extra power does the refrigerator consume as a result of the malfunction of the switch? (Express the extra power in terms of P,T_h,and T_c)

i know that Q/W_in = Tc/T_h-T_c

and W_out/Q_H = 1-T_c/T_h

i'm just not sure how to equat this to power... would the W_in be the power of the light bulb?

i get something like 1-(P(T_c/T_h-T_c) but that can't be right...

if someone could help, that would be great!