In an electro dynamometer type of wattmeter – McqOptions

MCQOPTIONS

1.	In an electro dynamometer type of wattmeter
A.	the current coil is made fixed
B.	the pressure coil is fixed
C.	any of the two coils current coil or pressure coil can be made fixed.
D.	both the coils should be movable.
Answer» B. the pressure coil is fixed

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