An electric bulb draws a. Current of 0.8 A and works on 250 v on the average 8 hours a day if energy caused is ₹3 per kilowatt hour calculate monthly. Bill for 30 days
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power(P)= volt(V) × current (A)
so, P= 250×0.8=200 watt
it works for 8 hours in a day.
so in one day the energy drawn by the bulb is= 8 ×200 watt. hour
=1600 watt hour
=1.6 kilo-watt hour
so in one month the total energy is
= 30×1.6
=48 kilo-watt hour
So, the bill for 1 month is
= 48×3
=144 ₹
so, P= 250×0.8=200 watt
it works for 8 hours in a day.
so in one day the energy drawn by the bulb is= 8 ×200 watt. hour
=1600 watt hour
=1.6 kilo-watt hour
so in one month the total energy is
= 30×1.6
=48 kilo-watt hour
So, the bill for 1 month is
= 48×3
=144 ₹
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