Physics, asked by arnavkarn, 9 months ago

A 2KW heater a 200W tv and three 100W lamps are all switched on from 6PM to 10PM. Find the cost of electricity consumed at the rate of rupee 5 per unit.

Answers

Answered by 1Vishnu

Answer:

50 rupees

Explanation:

First of all you need to know that one commercial electrical unit is KWhr which is a unit of energy. So we have appliances of total 2.5 kw and using them for 4 hrs . This means the energy used is 10 KWhr/units.

This costs (5X10) 50 rupees

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