Question

3 If 1 kWh of energy costs Rs 10, how much does it cost to use
a) a 2 kW heater for 4 hours?
b) a 100 W light bulb for 5 hours?
c) a 1 W lamp for 4hours?​

Answer 1

Answer:

a). 80

b). 1

c).0.01

Explanation:

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