An electric fuse used in households works on which principle of:
A
Joule's heating
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B
Coulomb's law
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C
Maxwell's law
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D
Ohm's law
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Solution
The correct option is A Joule's heating An electric fuse in households works on the principle of Joule's heating that heat produced due to the excess current flowing through it melts the fuse wire which cut off the circuit and hence the appliance is prevented from damage.