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ESE EC 2018 Achiever Study Plan: Analog Circuits Quiz 2
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Question 1
In order to increase the bandwidth of tuned amplifiers. one can use.
1) Tuned circuit with inductance having high Q-factor.
2) Double tuned amplifier with two tuned circuits coupled by mutual inductance.
3) Staggered tuned amplifiers in which different tuned circuits which are cascaded are tuned to slightly different frequencies.
1) Tuned circuit with inductance having high Q-factor.
2) Double tuned amplifier with two tuned circuits coupled by mutual inductance.
3) Staggered tuned amplifiers in which different tuned circuits which are cascaded are tuned to slightly different frequencies.
Question 2
An output signal of a power amplifier has amplitudes of 2.5 V fundamental, 0.25 V second harmonic and 0.1 V third harmonic. The total percentage harmonic distortion of the signal is.
Question 3
An FET-input UC operational amplifier has an open loop differential gain of 1,00,000 and a common mode gain of 25. Then the common mode rejection ratio is:
Question 4
The peak output of a tuned amplifier is at 6 MHz and has quality factor of 60. The bandwidth and 3 dB frequencies shall be.
Question 5
In a transistor biased n the active region, thermal runaway is due to.
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Feb 7ESE & GATE EC
