Measurements and Instrumentation

Which of the following instruments has non-linear scale?

Moving coil instrument

Moving iron instrument

Electrostatic instrument

Rectifier instrument

Select the answer as per following codes

A 2 only

B 2 and 3 only

C 2, 3 and 1

D 1, 2, 3 and 4

ANS:B - 2 and 3 only

Moving coil and Rectifier Instruments have linear scale. Moving iron and electrostatic have non-linear scale.

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