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Solve the example. An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that in the month of April? (The electric company charges Rs 5 per unit of energy).

Question 19.

Solve the example.

An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that in the month of April? (The electric company charges Rs 5 per unit of energy).


Answer:

Power of electric iron = 1100 W


Time t = 2 hrs


So energy consumed daily = P x t


= 1100 x 2


= 2200 Wh


For 30 days since the month of april has 30 days


Energy consumed= 2200 x 30


= 66000 Wh


= 66 Kwh


1 Kwh = 1 unit = Rs 5


So 6.6 Kwh = 5 x 66 = 330 rupees


So the bill for month of April will be 330 rupees.