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Define Electric Power. What Do You Mean by 'Power Rating' of an Electric Appliance?

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Question

Define electric power. What do you mean by 'power rating' of an electric appliance?
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Solution

Electrical power is defined as the rate at which energy is changed or work is done i.e., the work done per second or energy converted per second.
Electrical appliances come with certain number of watts and volts written on them. Power rating of an electrical appliance gives the knowledge of the safe current limit of an appliance and also indicates the voltage above which the appliance should not be used.

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Chapter 4: Electricity and Magnetism - Exercise 4.2 i [Page 187]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 4 Electricity and Magnetism
Exercise 4.2 i | Q 1 | Page 187
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