Estimate the cost per kwh of an alkaline d-cell

Reference no: EM13266541

Battery-powered electricity is very expensive compared with that available from a wall receptacle. Estimate the cost per kWh of

(a) an alkaline D-cell (cost $1.70) and

(b) an alkaline AA-cell (cost $1.25). These batteries can provide a continuous current of 25 mA for 820 h and 120 h, respectively, at 1.5 V.

Reference no: EM13266541

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