A electric heaterof 1000 W is used for 2 hours a day. What is the cost of using it for a month of 28 days, if 1 unit costs ₹3.00
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power used by the electric heater in a day = 1000 w for 2 hr
= 500 w for 1hr
1 unit = 1kwh
power used by the electric heater in a month of 28 days = 14 units
1 unit costs ₹3.00
14 unit costs= ₹3.00 × 14
= ₹42.00
= 500 w for 1hr
1 unit = 1kwh
power used by the electric heater in a month of 28 days = 14 units
1 unit costs ₹3.00
14 unit costs= ₹3.00 × 14
= ₹42.00
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