A washing machine rated 300W is operated for one hour/day.if the cost of unit is Rs.3.00 find the cost of the energy to operate a washing machine for the month of march
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p 300w
t 1h× 31 = 31h
E = p×t
300×31 wh
9300wh = 9300÷ 1000 kwh
9.3kwh
1kwh = 1u
1kwh = 3rs
9.3kwh = 3× 9.3
27.9 rs
t 1h× 31 = 31h
E = p×t
300×31 wh
9300wh = 9300÷ 1000 kwh
9.3kwh
1kwh = 1u
1kwh = 3rs
9.3kwh = 3× 9.3
27.9 rs
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