Which of the following is used in place of an ‘Electric Fuse’?

Correct option is B

The correct answer is Miniature circuit breaker.
· The function of MCB is close to the function of a Fuse as both are the devices that provide protection to the electrical circuit when the current in the electrical circuit is more than the permissible limit.
· Both the devices break the loop of the circuit whenever there is an extreme supply of current, this ensures the protection of the electric appliances.
· So the correct answer is Miniature circuit breaker (MCB).
Information Booster
The MCB has many advantages compared to a fuse:
1. MCB are switches that automatically turn off when the current in a circuit in a circuit exceeds the safe limit.
2. MCB provides quick restoration of the supply, you turn them on and the circuit is once again complete. This is not possible with fuses.
3. MCB is safer to handle as compared to the fuses.
Additional Information
Fuse: A fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit.
Properties of fuse:
· Low resistance: The resistance of the fuse must low so that it can carry rated current without overheating.
· Low melting point: The meting point of fuse wire should low so that it can melt immediately when excess current flow through it.
· It is used in a series of equipment as a safety device.
· Fuse: A fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit.
Miniature Circuit Breaker (MCB):
· It is a kind of electronic switch that functions automatically.
· It can detect a problem occurring inside a circuit by identifying the extreme amount of current flow in the circuit.
· If there is a large amount of power available in the loop, it can break the loop at any moment.