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Mamont248 [21]
2 years ago
13

A man has 60w bulbs and a 240w water heater in his apartment. If the bulbs and the water heater are switched on for four hours d

aily and the cost of electricity is N1.20 per KWh calculare his bill in 30 days
Physics
1 answer:
SVETLANKA909090 [29]2 years ago
3 0

Answer: N43.2

Explanation:

Given

Power consumption of bulb and water are 60\ W and 240\ W

If the Devices are on for four hours

Total power of devices 60+240=300\ W

Energy consumed for 4 hours is

\Rightarrow 300\times 4=1200 Wh\\\Rightarrow 1.2\ kWh

For 30 days it is 1.2\times 30=36\ kWh

Cost for 30 days 36\times 1.2=43.2\ N

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