please provide detail solution. Will rate five star for correct answer. A transi
ID: 2280306 • Letter: P
Question
please provide detail solution. Will rate five star for correct answer.
A transistor radio operates by means of a 10 V battery that supplies it with 62 mA current. If the cost of the battery is $2.43 and it lasts for 321 h, what is the cost per kWh to operate the radio in this manner? Answer in units of $/kW . h The same radio, by means of a converter, is plugged into a household circuit by a home owner who pays $0.08 /kW . h. What does it now cost to operate the radio for 321 h? Answer in units of $Explanation / Answer
power= 10V * 62mA = 0.62W
kWh = power * hr =0.62 * 321 =199.02 * 10^-3 kWh
COST OF BATTERY = $2.43
so answer = $2.43 / 199.02*10^-3 kWh =12.209
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