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Question

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

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Solution

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.

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