Batteries are rated in terms of ampere-hours (A · h). For example, a battery tha

Question

Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 3.00 A for 5.00 h is rated at 15.00 A · h.

(a) What is the total energy stored in a 12.0-V battery rated at 53.0 A · h?
_______ kWh

(b) At $0.0560 per kilowatt-hour, what is the value of the electricity produced by this battery? NOTE: Enter your response with hundredths precision.

___________


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Explanation / Answer

total energy stored in a 12.0-Vbattery rated at 53.0 A· h is

= V it = 12 V * 53 A - h

= 12 V * 53

A * 3600 s = 2289600 J
                = 636 W - h
                = 0.636 kW - h

the value of the electricity produced by this battery is

= 0.636 * ( $ 0.0560 )
= $ 0.035616

Source: http://www.cramster.com/answers-jan-09/physics/total-energy-stored-batteries-rated-terms-ampere-hours-amiddot_461210.aspx

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