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Question

Circuit breaker device which can be used in place of fuse in domestic electric wiring is called:

A
CBD
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B
MCB
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C
DCB
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D
MCD
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Solution

The correct option is B MCB
MCB stands for miniature circuit breaker. These days MCBs or miniature circuit breakers are being used increasingly in household electric wiring, in place of traditional fuses. MCB does not work on the heating effect of current. MCB works on the magnetic effect of current.

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