3) A certain amplifier has an input voltage of 50 Vp-p and an input impedance of 100k2 It produces an output of 15 Vp-p across an 40 load impedance. The power supply has a voltage of 20 V and delivers an average current of 2.5A. Find the power dissipated in the amplifier and the efficiency of the amplifier. 4) Suppose that you have available a number of amplifier stages with input impedance of 3k2, open-circuit gain of 15, output impedance of 100 Q2. The signal source has an open-circuit voltage of 30 mVave and a short-circuit current of 3 μAave. You need to supply an amplified signal of at least 12 Vave to a 100 load. Design a cascade amplifier using the fewest number of stages. How many stages are required, and what is the resulting output voltage? TEEL-1021 AC Circuits Vectors Concepts ABET Pretest ⚫ Prof. González 10/23/2019 Q-1 Control Concepts 5) An FM radio receiver has an input impedance of 75 02. The input signal provided by a distant transmitter is 10 μVave to an 8 Q2 loudspeaker. Calculate the: a. Voltage gain of the receiver b. Current gain of the receiver c. Power gain of the receiverd d. All gains in decibels