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प्रश्न
An electric kettle is rated 3kW, 250V. What should be the current capacity of the fuse with it?
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उत्तर
The maximum current capacity of kettle, I = `"P"/"V" = 3000/250 = 12"A"`
Thus, the fuse should be of current capacity slightly less than 12A.
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Unit of electric power may also be expressed as:
