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In measuring electric energy, 1 kWh is e...

In measuring electric energy, 1 kWh is equal to

A

`3.6xx10^(4)` J

B

`3.6xx10^(6)` J

C

`7.3xx10^(6)` J

D

None of these

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The correct Answer is:
B
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1kWH is equal to

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In practice the unit kWh is used for the measurement of electrical energy, rather than joule.

(a) What is the meaning of the symbol kWh ? What quantity does it represent ? (b) How much electric energy in kWh is comsumed by an electrical appliance of 1000 watts when it is switched on for 60 minutes ?

Show that 1 kWh is equal to 3.6 MJ.

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