Hello friends ....
Question is =====
A 2 kW heater , a 200 W TV and three 100 W lamps are All switched on from 6 p.m to 10 p.m . what is total cost at Rs.5.50 per kWh ????
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Answers
Answered by
8
Heya!!
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Total power = 2kW + 200W + 3(100W)
= 2kW + 0.2kW + 0.3kW
= 2.5 kW
Total time = 4 hr
Since E = P. t
=) E = 2.5* 4
= 10 kWh
Hence total cost = 5.50*10
= ₹55
Hope it helps uh :)
------------------------------
Total power = 2kW + 200W + 3(100W)
= 2kW + 0.2kW + 0.3kW
= 2.5 kW
Total time = 4 hr
Since E = P. t
=) E = 2.5* 4
= 10 kWh
Hence total cost = 5.50*10
= ₹55
Hope it helps uh :)
Answered by
11
Solution :-
Total Power
2000 + 200+ 300 = 2.5 KW
Time = 4 hr
Commencial unit.
E = P ×T
=> 2.5 × 4
=> 10 kWh
=> Total Price = 5.50 × 10
=> 55 RS.
=============
I hope it's help you...!!!
Total Power
2000 + 200+ 300 = 2.5 KW
Time = 4 hr
Commencial unit.
E = P ×T
=> 2.5 × 4
=> 10 kWh
=> Total Price = 5.50 × 10
=> 55 RS.
=============
I hope it's help you...!!!
Anonymous:
Thanks
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