[Solved] Determine Ad and Ac for the given circuit.

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Q.	Determine Ad and Ac for the given circuit.
A.	ac = 0 and ad = 1
B.	ac ≠ 0 and ad = 1
C.	ac = 0 and ad ≠ 1
D.	ac ≠ 0 and ad ≠ 1
Answer» A. ac = 0 and ad = 1
Explanation: consider the fact that the potential at the input terminals are identical and obtain the values of v1 and v2. thus obtain the value of vd and vc.

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