Discussion
An electric fuse is based on
Answer: A
An electric fuse is based on the heating effect of current.
A fuse is a short piece of wire with a low melting point placed in series with a circuit. When the current rises above the safe limit, because of a short circuit or overloading, the heat produced in the wire, proportional to I2Rt, melts it. The circuit is broken and the wiring and appliances are protected.
The chemical effect of current is used in electroplating and the magnetic effect in electromagnets, motors and circuit breakers that trip magnetically, not in a fuse wire.
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