For the circuit shown below, the output voltage is ν0

For the circuit shown below, the output voltage is ν₀ = 2.5 V in response to input voltage ν_i = 5 V. The finite open-loop differential gain of the op-amp is:

From figure

V_A = V_i ×	1
	1 + 500

V_A =	V_i
	501

and V_o = A_od. V_A = A_od.	V_i
	501

or A_od = 501.	V₀	= 501 ×	2·5	= 250.5
	V₁		5