Amplifier Voltage Gain Calculator

Formula

The formula to calculate the voltage gain of an amplifier is:

\[ A_v = \frac{V_{out}}{V_{in}} \]

Where:

\(A_v\) is the Voltage Gain
\(V_{out}\) is the Output Voltage
\(V_{in}\) is the Input Voltage

What is Amplifier Voltage Gain?

Amplifier voltage gain is a measure of how much an amplifier increases the strength of a signal. It is defined as the ratio of the output voltage to the input voltage. A higher voltage gain means that the amplifier is able to increase the signal strength more. Amplifiers are used in a variety of applications, including audio equipment, radio transmission, and signal processing, to boost weak signals to a usable level.

Example Calculation 1

Let's assume the following values:

Output Voltage (\(V_{out}\)) = 10 V
Input Voltage (\(V_{in}\)) = 2 V

Using the formula:

\[ A_v = \frac{10}{2} = 5 \]

The Voltage Gain is 5.

Example Calculation 2

Let's assume the following values:

Output Voltage (\(V_{out}\)) = 15 V
Input Voltage (\(V_{in}\)) = 3 V

Using the formula:

\[ A_v = \frac{15}{3} = 5 \]

The Voltage Gain is 5.