Unformatted text preview: 238 Equations
Set 3: 238 A 12V battery is chareged with a constant current of 2 amp for 24 h. Determine the cost if electricity is $0.08/kWhr. W = I V time 0.001 I = 2 [amp] V = 12 [Volt] time = 24 [hr] Cost = 0.08 [$/kW hr] W The current cost of electricity for residential users is about 10.5 cents/kWhr kW hr amp volt hr (1) (2) (3) (4) (5) Solution
Cost = 0.04608 [$] I = 2 [amp] time = 24 [hr] V = 12 [Volt] W = 0.576 [kWhr] ...
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This note was uploaded on 07/29/2008 for the course ME 361 taught by Professor Martin during the Spring '07 term at University of Wisconsin.
 Spring '07
 MARTIN

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