Question

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 1

Answer:

heating effect

Explanation:

as the copper strip present in MCB when gets heated then it's collapsed which results into the power cut

Answer 2

$\huge\underline\mathfrak\red{Answer}$

☆ An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the

♡HEATING EFFECT OF CURRENT

$\bold{Explaination}$ $<u>$

When the wire gets heated (the one which is supplying current) then in melts and breaks down and thus the suplly cuts-off.