D *1.54 A designer has available voltage amplifiers with an input resistance of 100 kΩ, an output resistance of 1 kΩ, and an open-circuit voltage gain of 15. The signal source has a 50- kΩ resistance and provides a 5-mV rms signal, and it is required to provide a signal of at least 3 V rms to a 200-Ω load. How many amplifier stages are required? What is the output voltage actually obtained?
4; 16.37 V
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