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Measurements and Instrumentation - Engineering

Q1:

An electrodynamometer instrument has the advantage of

A freedom from hysteresis and eddy currents because air cored coils are used

B freedom from hysteresis and eddy currents because cores of coils have special ferromagnetic material

C high torque/weight ratio

D low cost

ANS:A - freedom from hysteresis and eddy currents because air cored coils are used

No answer description is available.