Basic Electronics mcq with answers pdf - Part 2

Hello Students, Welcome to Mypractically. So, today in this post our team give Basic Electronics mcq with answers pdf Subject Code - 22225/22216. This post is very beneficial for Electronic, Electrical or Computer/IT students. Here, we design MCQ for practice purpose only. So, I requested to students this MCQ is not 100% sure to come in exam.

I give you 20+ MCQ bank in this post. So, I highly recommend to you to try and solve this all mcq more than 2-3 times.

Subject - Basic Electronic
Subject Code - 22225/22216
Branch - Electrical, Electronic or Computer/IT

Q 1. A semiconductor is formed by ……… bonds.
1.Covalent
2.Electrovalent
3.Co-ordinate
4.None of the above

Q 2. When a pentavalent impurity is added to a pure semiconductor, it becomes ………
1.An insulator
2.An intrinsic semiconductor
3.p-type semiconductor
4.n-type semiconductor

Q 3. The addition of pentavalent impurity to a semiconductor creates many ……..

1. Free electrons
2. Holes
3. Valence electrons
4. Bound electrons

Q 4. A trivalent impurity has ….. valence electrons
1. 4
2. 5
3. 6
4. 3

Q 5. A hole in a semiconductor is defined as ……………

1. A free electron
2. The incomplete part of an electron 3. pair bond
4. A free proton

Q 6. The battery connections required to forward bias a pn junction are ……

1. +ve terminal to p and –ve terminal to n
2. +-ve terminal to p and +ve terminal to n
3. -ve terminal to p and –ve terminal to n
4. None of the above

Q 7. In the depletion region of a PN junction, there is a shortage of ……..

1. Acceptor ions
2. Holes and electrons
3. Donor ions
4. None of the above

Q 8. The reverse current in a diode is of the order of ……………

1. kA
2. mA
3. μA
4. A

Q 9. A PN Junction diode is used as ……………
1. an amplifier
2. a rectifier
3. an oscillator
4. a voltage regulator

Q 10. When the current through PN Junction is large, the bias is …………

1. forward
2. inverse
3. poor
4. reverse

Q 11. A Zener diode is used as …………….
1. a voltage regulator
2. a rectifier
3. a multivibrator
4. an amplifier

Q 12. A Zener diode is always ………… connected.

1. reverse
2. forward
3. either reverse or forward
4. none of the above

Q 13. The characteristic curve for Zener diode in forwarding bias is the same as….

1. PN junction diode in FB
2. LED in FB
3. PN junction diode in RB
4. Photodiode in RB

Q 14. Breakdown voltage in the Zener diode is also called as….

1. Reference Voltage
2. Knee voltage
3. Zener voltage
4. Potential Barrier

Q 15. The colour of emitted light from LED depends on

1. Construction of LED, that is physical dimensions
2. Number of available carriers
3. Type of semiconductor material used
4. Number of recombinations taking place

Q 16. The phenomenon of light emission is called as ------

1. Absorption
2. Electroluminescence
3. Photoconduction
4. None of these
5.
Q 17. Construction of LED is a _______ Layer Structure

1. 2
2. 3
3. 4
4. 5

Q 18. The advantage of LED is

1. Long life
2. Fast on-off switching
3. Low operating voltage
4. All of the above

Q 19. The photodiode is always connected in ………… Bias

1. Forward
2. Reverse
3. inverse
4. none of these

Q 20. in photodiode when there is no incident light, the current is almost negligible and is called -------

1. Zener current
2. dark current
3. photocurrent
4. forward current

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