Figure 2
-Refer to Figure 2(c). The closed- loop gain, ACL, is
A)-9.2
B)+9.2
C)+8.2
D)-8.2

Question

Figure 2
-Refer to Figure 2(c). The closed- loop gain, ACL, is
A)-9.2 
B)+9.2 
C)+8.2 
D)-8.2

Quizplus · Accepted Answer

The closed-loop gain (ACL) of an operational amplifier circuit is determined by the feedback network around the op-amp. The sign of the gain (+ or -) indicates the phase relationship between the input and output signals. A positive gain (+) means the output is in phase with the input, while a negative gain (-) indicates a 180-degree phase shift (inversion). The correct magnitude of the gain can be calculated based on the specific configuration and component values given in Figure 2(c), which is not directly visible here, but the positive sign in choice B suggests a non-inverting configuration or a context where the gain is meant to be positive.

Figure 2 -Refer to Figure 2(c). the Closed- Loop Gain, ACL, Is