Figure 1
-Refer to Figure 1. Looking in at Vin, the input resistance is approximately
A)5.6 k▲
B)14 k▲
C)39 k▲
D)1.8 k▲

Name: Figure 1 -Refer to Figure 1. Looking in at Vin, the input resistance is approximately A)5.6 k▲ B)14 k▲ C)39 k▲ D)1.8 k▲
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Question

Figure 1
-Refer to Figure 1. Looking in at Vin, the input resistance is approximately
A)5.6 k▲ 
B)14 k▲ 
C)39 k▲ 
D)1.8 k▲

Quizplus · Accepted Answer

The input resistance is approximately equal to the value of the resistor connected to the non-inverting input of the op-amp. In this case, the resistor connected to the non-inverting input is 5.6 kΩ.

Figure 1 -Refer to Figure 1. Looking in at Vin, the Input