Question

Why is a fuse wire used in domestic electrical circuits despite the presence of an earthing wire?

• A. To increase current.
• B. To increase voltage.
• C. To reduce heating due to current.
• D. To increase protection of electrical appliances.

Answer 1

The correct option is D To increase protection of electrical appliances.

Fuse is also a protective device meant to protect electrical appliances from high voltage and short circuits. In event of any possible damage, the fuse wire melts and disconnects the circuit from the supply to prevent damage.