Physics

Problem

A home inverter is supplied by a

48\,\text{V},\;200\,\text{Ah}

battery bank. The inverter has an efficiency of

80\%

. If the connected household load is

400\,\text{W}

, approximately how long (in hours) can the inverter run before the batteries are fully discharged? a)

24\,\text{h}

15\,\text{h}

19\,\text{h}

12\,\text{h}