Explain the role of fuse in series with any electrical appliance in an electric circuit. Why
should a fuse with defined rating for an electric circuit not be replaced by one with a larger
rating?
Answers
The electrical fuse is a safety device against overloading and short circuiting of any electrical circuit.
A fuse is placed in series with the circuit so that the same current flows through the fuse and the electrical circuit.
The rating of a fuse indicates the maximum current which can flow through a fuse without blowing it off. If a fuse of higher rating is used, then it will not blow off even when the current exceeds the safety limit of the appliance. As a result, the electrical appliances may get damaged.
Answer:
The electrical fuse is a safety device against overloading and short circuiting of any electrical circuit.
A fuse is placed in series with the circuit so that the same current flows through the fuse and the electrical circuit.
The rating of a fuse indicates the maximum current which can flow through a fuse without blowing it off. If a fuse of higher rating is used, then it will not blow off even when the current exceeds the safety limit of the appliance. As a result, the electrical appliances may get damaged.