a electic motor rated 1kw is used for 3hours /days and2 balb of 6hours is used for 8hours /day what is the cost cost of energy if it operates in the month of November at Rs 5.00 per unit?
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GIVEN;
Electric motor = 1kw is used for 3 hours .....
Electric bulb = 2 × 6w is used for 8 hours.....
Changing electric bulb = watt to kilowatt
(1kw=1000w)
2×6/1000=0.012kw
Electric motor = 1kw × 3hrs = 3kwh....
Electric bulb = 0.012kw × 8hrs= 0.096kwh
total energy = motor energy + bulb energy
= 3kwh + 0.096kwh
= 3.096kwh
daily consumption = 3.096 × 5 = Rs 15.48
monthly consumption = 15 .48 ×30 =Rs. 464.4
cost of energy used in the month of November is 464 rupees...........
hope it helps you ☺️
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