Answer & Solution
Answer: Option C
Solution:
To find the closed-loop voltage gain of a noninverting amplifier, use the formula:
Closed-loop voltage gain $$A_{v}$$ = $$1 + \frac{R_f}{R_i}$$
Given:
- $$R_i$$ (input resistance) = 1 kΩ
- $$R_f$$ (feedback resistance) = 100 kΩ
Substitute these values into the formula:
$$A_{v} = 1 + \frac{100000}{1000}$$
$$A_{v} = 1 + 100$$
$$A_{v} = 101$$
Therefore, the closed-loop voltage gain is 101.