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?

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

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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?

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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

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

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

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

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Q. What is reactance?

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

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

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

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

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

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

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

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

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

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

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

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Q. What is a filter?

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