An electrodynamometer instrument has the advantage of – McqOptions

MCQOPTIONS

1.	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
Answer» B. freedom from hysteresis and eddy currents because cores of coils have special ferromagnetic material

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