## Find the new gain for the inverting-amplifier circuit, Electrical Engineering

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Q. An op amp has a finite gain of only 50, but is otherwise ideal. For the inverting-amplifier circuit of Figure, if R2 = 20 k, what value of R1 would be needed to give a gain of -15? If the op amp's gain could be increased by 20%, find the new gain. #### Voltmeter transistor, explain basic working of voltmeter transistor

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