Which of the following methods are used for producing damping torque i – McqOptions

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1.	Which of the following methods are used for producing damping torque in analog instruments?1) Air friction damping2) Fluid friction damping3) Eddy current damping4) Electromagnetic damping
A.	1, 2 and 3 only
B.	1, 2 and 4 only
C.	1, 3 and 4 only
D.	1, 2, 3 and 4
Answer» E.

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