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A lab technician must measure the input resistance Ri of an amplifier. The amplifier has voltage gain Av = vo/vi = 100 V/V. The technician uses the circuit in the figure to perform the task. a) Describe, in the form of an equation, how the technician measures Ri b) The technician measures the resistance to be Ri = 100 kv. If Rx is also 100 kv, how large of a signal generator amplitude vS can the technician use before the amplifier saturates?

A lab technician must measure the input resistance Ri of an amplifier. The amplifier has voltage gain Av = vo/vi = 100 V/V. The technician uses the circuit in the figure to perform the task. a) Describe, in the form of an equation, how the technician measures Ri b) The technician measures the resistance to be Ri = 100 kv. If Rx is also 100 kv, how large of a signal generator amplitude vS can the technician use before the amplifier saturates?

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A lab technician must measure the input resistance R i of an amplifier. The amplifier has voltage gain A v = v o / v i = 100 V / V . The technician uses the circuit in the figure to perform the task. a) Describe, in the form of an equation, how the technician measures R i b) The technician measures the resistance to be R i = 100 k v . If R x is also 100 k v , how large of a signal generator amplitude v S can the technician use before the amplifier saturates?

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