Q. What is the total gain of amplifiers with a power gain of 6, 8, 5 when connected in series?

View solution

Q. A two-stage amplifier has an input power of 30 μW and an output power of 1.5 mW. One stage has a gain of 3. What is the gain of the second stage?

View solution

Q. What should be the gain of an amplifier to have no voltage loss or gain?

View solution

Q. What should be the gain of an amplifier to have zero voltage loss if the signal is already attenuated half that of the original signal?

View solution

Q. What is the value of the total gain if A represent attenuation and G represent gain and all are cascaded?

A₁=0.5 G₁=5

A₂=0.035 G₂=20

View solution

Q. The unit decibel is a way of expressing the hearing response of the human ear.

View solution

Q. What is the gain in decibels if the amplifier has an input of 3 mV and output of 5 V?

View solution

Q. When a decibel value is computed by comparing a power value to 1 mW it is called as?

View solution

Q. What is reactance?

View solution

Q. What happens to the current when it passes through a capacitor?

View solution

Q. What happens to the voltage when it passes through an inductor/coil?

View solution

Q. A capacitor used in an ac circuit continually charges and discharges.

View solution

Q. What happens to capacitative reactance when operating frequency is increased?

View solution

Q. Calculate the reactance of a 100-pF capacitor at an operating frequency of 2 MHz?

View solution

Q. Which one of the following is false with respect to stray capacitance?

View solution

Q. What happens to inductive resistance when operating frequency is increased?

View solution

Q. What is the inductive reactance of a 40-μH coil at 18 MHz?

View solution

Q. What is the Q factor for a 3-μH inductor with a total resistance of 45 Ω at 90 MHz?

View solution

Q. What is the resonant frequency of a 2.7-pF capacitor and a 33-nH inductor?

View solution

Q. What is the bandwidth of a resonant circuit with a frequency of 28 MHz and a Q of 80?

View solution