Single Answer MCQ
Q-00019670

To what does Joule heating in a fuse refer?

1

Power loss as heat due to high current

2

Heating of the wires by the appliance

3

Increase in temperature across the circuit

4

Melting of the insulation

Answer and Solution

Answer

A. Power loss as heat due to high current

Solution:

Joule heating refers to the heat produced due to electrical resistance when excessive current flows through the fuse, leading to its melting and opening the circuit.

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