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Q.

Is it true that the electrical energy consumed by an electrical appliance depends on the power rating of the appliance?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
The power rating of the device, as well as the time that it is used, are two factors that affect the amount of electricity consumed by electrical appliances. An electrical appliance's rating shows the voltage at which the appliance is intended to operate and the current consumption at that voltage. For example, if an appliance is rated as 220 V-100W it means the appliance will consume 100 Joule energy in one hour if operated on 200 V.
Power = energy consumedTime
 
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