In a non-inverting amplifier configuration using a 741 op-amp, if the input resistor (Rin) is 4 kΩ and the feedback resistor (Rf) is 6 kΩ, what is the voltage gain of the amplifier?
Question
In a non-inverting amplifier configuration using a 741 op-amp, if the input resistor (Rin) is 4 kΩ and the feedback resistor (Rf) is 6 kΩ, what is the voltage gain of the amplifier?
Solution
The voltage gain (Av) of a non-inverting amplifier can be calculated using the formula:
Av = 1 + (Rf / Rin)
Where: Rf is the feedback resistor Rin is the input resistor
Given in the problem, Rf = 6 kΩ and Rin = 4 kΩ.
Substituting these values into the formula, we get:
Av = 1 + (6 / 4)
Solving this, we get:
Av = 1 + 1.5 = 2.5
So, the voltage gain of the amplifier is 2.5.
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