Question

an electric heater of 4000 W uses 20000 J of energy in a day.
a) Find the time for which it is used in a day.
b) what is the cost of using it for 50 days, if 1 unit costs Rs 6.

today is my exam please help​

Answer 1

Answer:

a) 30 minutes b) cost is ₹36000

Explanation:

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Answer 2

Hello

Here is ur answer

a) 30min

b) Cost is Rs. 36000