In modern household wiring, a 'fuse' has largely been replaced by which device that performs the same safety function but can be reset? MCQ with Answer and Explanation
In modern household wiring, a 'fuse' has largely been replaced by which device that performs the same safety function but can be reset?
A. Rectifier
B. Inverter
C. Capacitor
D. MCB (Miniature Circuit Breaker)
Answer: Option D
Solution (By JKSSB Mock Tests)
A Miniature Circuit Breaker (MCB) serves the same safety function as a fuse: breaking the circuit during an overload or short circuit. However, unlike a fuse wire that melts and must be physically replaced, an MCB contains an electromechanical mechanism that trips the switch. It can simply be switched back on to restore power.
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