Question

write a short note in MCB NCERT​

Answer 1

Answer:

MCB is an electromagnetic device which operates and disconnects the circuit when the current reaches a pre-determine value. It is normally operated at 1.25 times its rated current. It is an overcurrent protection device. Overcurrent may result from short circuit or overload.

Answer 2

$\huge\mathrm\pink{Answer:}$

MCB is an electromagnetic device which operates and disconnects the circuit when the current reaches a pre-determine value. It is normally operated at 1.25 times its rated current. It is an overcurrent protection device. Overcurrent may result from short circuit or overload.

____________________________