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Amplifier: Quiz


Question 1: Many common active devices in transistor amplifiers are bipolar junction transistors (BJTs) and metal oxide semiconductor field-effect transistors (________).
SiliconMOSFETSemiconductor deviceIntegrated circuit

Question 2: When the signal drive to the amplifier is increased, the output also increases until a point is reached where some part of the amplifier becomes saturated and cannot produce any more output; this is called clipping, and results in ________.
DistortionJohnson–Nyquist noiseJitterPhase distortion

Question 3: This is a measure of how much ________ is introduced in the amplification process.
Noise (electronics)Noise measurementNoiseNoise (video)

Question 4: A similar mechanism was used in the ________ differential analyzer.
Vannevar BushChien-Shiung WuNorbert WienerClaude Shannon

Question 5: One of the first devices used to amplify signals was the ________ (effectively a sound-controlled variable resistor).
Carbon microphoneRepeaterAlexanderson alternatorAmplifier

Question 6: This type of amplifier was commonly used on ________ as the final vertical amplifier.
Cathode ray tubeMultimeterAnalog-to-digital converterOscilloscope

Question 7: Critical components include ________, such as vacuum tubes or transistors.
Electronic filterIntegrated circuitDiodePassivity (engineering)

Question 8: Output ________ is the range, usually given in dB, between the smallest and largest useful output levels.
Audio system measurementsDynamic rangeDecibelSignal-to-noise ratio

Question 9: tr * BW = 0.35, where tr is rise time in ________ and BW is bandwidth in Hz.
Coordinated Universal TimeSecondClockInternational Atomic Time

Question 10: By channeling a large electric current through the compressed ________ granules in the microphone, a small sound signal could produce a much larger electric signal.


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