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An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the: a) chemical effect of current b) heating effect of current c) magnetic effect of current d) electroplating effect of current
An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the: a) chemical effect of current b) heating effect of current c) magnetic effect of current d) electroplating effect of current
CBSE | Class 10 | Lakhmir Singh | Magnetic Effects of Electric Current | Physics
An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the: a) chemical effect of current b) heating effect of current c) magnetic effect of current d) electroplating effect of current

Answer:

The correct option is c) magnetic effect of current.

Explanation:

A micro circuit breaker (MCB) works faster and more efficiently than a fuse to stop excessive current flow. When heated, an MCB’s bimetallic strip bends, activating a mechanical latch that opens the tiny circuit, cutting off current.

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