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1. Electricity
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Q35 of 330 Page 59

The commercial unit of energy is:

The commercial unit of energy is kilowatt-hour.

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33

An electric heater is rated at 2kW. Electrical energy costs ₹ 4 per kWh. What is the cost of using the heater for 3 hours?

34

The SI unit of energy is:

36

How much energy does a 100 W electric bulb transfer in 1 minute?

37

An electric kettle for use on a 230 V supply is rated at 3000 W. For safe working, the cable connected to it should be able to carry at least:

Questions · 330
1. Electricity
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