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Measurements and Instrumentation

Q1:

If eddy current damping is to be used, the disc of instrument should be

A non-conducting and non-magnetic

B conducting and magnetic

C conducting and non-magnetic

D non-conducting and magnetic

ANS:C - conducting and non-magnetic

Disc must be conducting otherwise eddy currents can not flow. It must be non-magnet, i.e., so that it does not affect the measurement.



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