Which of the following can be used as a rotating amplifier in a contro – McqOptions

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1.	Which of the following can be used as a rotating amplifier in a control system? 1.Amplidyne 2.Separately excited dc generator 3.Synchro 4.Self excited dc generator Select the answer from the following codes:
A.	3 and 4
B.	1 and 2
C.	1, 2 and 3
D.	all
Answer» C. 1, 2 and 3

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