Question

Which of the following are characteristics of an electric fuse?

• A. Greater thickness
• B. Lesser thickness
• C. High melting point
• D. Low melting point

Answer 1

Answer: (B), (D)

The correct options are
B Lesser thickness
D Low melting point

An electric fuse is a thin conducting wire that is connected at the main power supply point of a house through which all the current flows into the house. Since a fuse's purpose is to protect the home appliances from large harmful currents, it should have a low melting point so that it can melt easily whenever it gets heated up by large current. Also, it should be thin enough so that this melting happens quickly.