Correct Answer - Option 2 : 66.7
Concept:
The voltage gain of an amplifier is defined as the ratio of the output voltage to the input voltage. It is usually denoted by Av, i.e.
\(A_v=\frac{{{V_{out}}}}{{{V_{in}}}}\)
Calculation:
Given Vout = 1V
Vin = 15 mV
Gain (Av) will be:
\(A_v=\frac{{{V_{out}}}}{{{V_{in}}}}=\frac{1}{15m}\)
\(A_v=\frac{1000}{{15}}=66.67\)
