A workshop uses the following devices in a day:

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits

Problem

A workshop uses the following devices in a day: (i) one drilling machine rated

3\,\text{kW}

for

2\,\text{h}

, (ii) two ceiling fans each rated

0.5\,\text{kW}

for

8\,\text{h}

, (iii) ten lamps each rated

100\,\text{W}

for

5\,\text{h}

. Find the total electrical energy consumed in that day, in kWh. (a)

25\;\text{kWh}

(b)

15\;\text{kWh}

(c)

19\;\text{kWh}

(d)

22\;\text{kWh}