For the circuit given below determine the input common mode resistance – McqOptions

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1.	For the circuit given below determine the input common mode resistance.
A.	(R1 + R3) \|\| (R2) \|\| + (R4)
B.	(R1 + R4) \|\| (R2 + R3)
C.	(R1 + R2) \|\| (R3 + R4)
D.	(R1 + R3) \|\| (R2 + R4)
Answer» D.

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