Following statements are given for electrodynamometer-type instruments:a) It is used for a.c. quantities onlyb) It is used for both a.c. and d.c. quantitiesc) It can be used to measure power and frequencyd) It has only one coilOut of the above statements, which are correct?

Following statements are given for electrodynamometer-type instruments

1.	Following statements are given for electrodynamometer-type instruments:a) It is used for a.c. quantities onlyb) It is used for both a.c. and d.c. quantitiesc) It can be used to measure power and frequencyd) It has only one coilOut of the above statements, which are correct?
A.	and b) are correct
B.	and c) are correct
C.	and d) are correct
D.	and a) are correct
Answer» C. and d) are correct

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Following statements are given for electrodynamometer-type instruments:a) It is used for a.c. quantities onlyb) It is used for both a.c. and d.c. quantitiesc) It can be used to measure power and frequencyd) It has only one coilOut of the above statements, which are correct?

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