FET as a VVR - MCQs with answersQ1. How does the FET operate before the pinch-off region with small value of drain-to-source voltage in accordance to the control of drain-to-source resistance by the bias voltage?
a. As a Volatge Controlled Resistor
b. As a Voltage Dependent Resistor
c. As a Voltage-Variable Resistor
d. All of the above View Answer / Hide Answer
Q2. The rectified & filtered signal taken at a high level point in AGC amplifier generates _______.
ANSWER: d. All of the above
a. dc voltage proportional to the level of an output signal
b. dc voltage proportional to the level of an input signal
c. ac voltage proportional to thelevel of output signal
d. ac voltage proportional to the level of an input signalView Answer / Hide Answer
Q3. What is the major functioning role of VVR in the multistage AGC amplifier circuit during an increment in the signal level?
ANSWER: a. dc voltage proportional to the level of an output signal
a. Variation in control of input signal level
b. Variation in voltage gain of multistage amplifier
c. Variation in current gain of multistage amplifier
d. Variation in control of output signal levelView Answer / Hide Answer
ANSWER: b. Variation in voltage gain of multistage amplifier