Question

for what purpose these MCB circuit are used

Answer 1

it is used because it cuts the supply of current when an extra amount of current comes from mains .

it itself get down and cuts supply of current and save appliances from damage.

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PLS MARK AS BRAINLIEST

Answer 2

It used when the large amount of electricity used at a time then it disconnects the circuit to flow current .Hence our home circuit become safe .