Answered

What is the role of a fuse?

AA fuse is used to turn lights on and off.
BA fuse is used to break a circuit when there is too much current.
CA fuse is used to increase the current in a circuit
DA fuse is used to create a short circuit.

Verified Answer :

Sherbat

The correct answer is B. A fuse is used to break a circuit when there is too much current. 
I hope this helps :)
BA fuse is used to break a circuit when there is too much current.

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