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Q.

An electric heater is rated as 1500W . How much energy does it use in 10 hours?


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a

15kWh

b

12kWh

c

44kWh

d

54kWh 

answer is A.

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Detailed Solution

Concept: We have given an electric heater and we need to calculate the energy it will use.
Energy = p × t
 = 1.5kw × 10h
 = 15 kWh
Hence, the correct option is 1 .
 
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