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 Form 3 Physics: Heating Effect of an Electric Current Questions and Answers

An electric heater rated 3000w is to be connected to a 240V mains supply, through a fuse 10A fuse. Determine whether the fuse is suitable or not.

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Answer Text:
#I =p/v = 3000/240 = 12.5A#
Not suitable, since the current exceeds the fuse value.