Question
Calculate the gain of a negative-feedback amplifier having $A=-2000$ and $\beta=-1 / 10$.
Step 1
Step 1: Recall the formula for the gain of a negative-feedback amplifier: Gain (G) = A / (1 + A * β) Show more…
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Calculate the gain of a negative-feedback amplifier having A = 2000 and B = 1/IO. If the gain of an amplifier changes from a value of 1000 by 10%, calculate the gain change if the amplifier is used in a feedback circuit having B = 1/20.
When $A$ is the internal stage gain of an amplifier and $\beta$ is the feedback ratio, then the amplitude becomes as oscillator if (a) $\beta$ is negative and magnitude of $\beta=\frac{A}{2}$ (b) $\beta$ is negative and magnitude of $\beta=\frac{1}{A}$ (c) $\beta$ is negative and magnitude of $\beta=A$ (d) $\beta$ is positive and magnitude of $\beta=\frac{1}{A}$
Electronic Devices
Round 2
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