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Basic Electronics MCQs
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Basic Electronics MCQs
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25 Questions

1. A radio frequency signal contains three frequency components, 870 KHz, 875 KHz andKHz. The signal needs to be amplified. The amplifier used should be
2. The logic gate which detects equality of two bits is
3. In the voltage range, Vp < VDS < BVDSS of an ideal JFET or MOSFET
4. Which of the following parameters is used for distinguishing between a small signal and a large-signal amplifier?
5. The 'slew rate' of an operational amplifier indicates
6. In an amplifier with negative feedback
7. n-type silicon is obtained by
8. Most of linear ICs are based on the two transistor differential amplifier because of its
9. The reverse – saturation current of a silicon diode
10. For generating 1 kHz signal, the most suitable circuit is
11. A zener diode
12. A minterm of the Boolean-function, f(x, y, x) is
13. In an unclocked R-S flip-flop made of NOR gates, the forbidden input condition is
14. For a JFET, when VDS is increased beyond the pinch off voltage, the drain current
15. The three variable Boolean expression xy + xyz + x y + x y z
16. The important characteristic of emitter-follower is
17. The forward characteristic of a diode has a slope of approximately 50mA/V at a desired point. The approximate incremental resistance of the diode is
18. The main characteristics of a Darlington Amplifier are
19. A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current waveform will be
20. A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current waveform will be
21. The power conversion efficiency of an output stage is defined as .
22. When a sinusoidal voltage wave is fed to a Schmitt trigger, the output will be
23. The value of ripple factor of a half-wave rectifier without filter is approximately
24. The transformer utilization factor of a half-wave rectifier is approximately
25. In Boolean algebra A + AB

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