P27_033 - P = (120 V) 2 14 = 1 . 10 3 W = 1 . 0 kW . (b)...

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33. (a) Electrical energy is converted to heat at a rate given by P = V 2 R , where V is the potential diference across the heater and R is the resistance oF the heater. Thus,
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Unformatted text preview: P = (120 V) 2 14 = 1 . 10 3 W = 1 . 0 kW . (b) The cost is given by (1 . 0 kW)(5 . 0 h)(5 . 0 cents / kW h) = 25 cents ....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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