Question

Brief the working of a metal detector and give two to three of its applications in daily life.

Answer 1

A metal detector detects metals by inducing a magnetic field in them and in return the receiver picks up that magnetic field while indicating the presence of it.

• Metal detectors are used for screening purpose in malls, airports, railway stations and any other public place where security is needed.
• Also, they are employed in food processing industry to detect the presence of any metal in the edible products.
• Metal detectors are also used in the mining industry to find precious metals buried in earth.