Test: Basics of Semiconductor

# Test: Basics of Semiconductor

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## 25 Questions MCQ Test Basic Electronics Engineering for SSC JE (Technical) | Test: Basics of Semiconductor

Test: Basics of Semiconductor for Electrical Engineering (EE) 2023 is part of Basic Electronics Engineering for SSC JE (Technical) preparation. The Test: Basics of Semiconductor questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Basics of Semiconductor MCQs are made for Electrical Engineering (EE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basics of Semiconductor below.
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Test: Basics of Semiconductor - Question 1

### One electron volt equals

Test: Basics of Semiconductor - Question 2

### An excited electron is an atom returns to the ground state

Test: Basics of Semiconductor - Question 3

### For photo - Excitation to take place, the energy of the incident photon must Where w is the energy difference between the two stationary states.

Test: Basics of Semiconductor - Question 4

For forming p type germenium, the impurity atom must have valency of

Test: Basics of Semiconductor - Question 5

For forming n - type germenium the impurity atom has valency of

Test: Basics of Semiconductor - Question 6

In n- type semiconductor, new discrete energy levels get created

Detailed Solution for Test: Basics of Semiconductor - Question 6

For an n-type semiconductor, there are more electrons in the conduction band than there are holes in the valence band. This also implies that the probability of finding an electron near the conduction band edge is larger than the probability of finding a hole at the valence band edge. Therefore, the Fermi level is closer to the conduction band in an n-type semiconductor and it lies just below the conduction band.

Test: Basics of Semiconductor - Question 7

In p - type germanium, new discrete levels get created

Test: Basics of Semiconductor - Question 8

When a donor atom is added to a semiconductor, the donor atom

Test: Basics of Semiconductor - Question 9

Drift current in germanium is caused by

Test: Basics of Semiconductor - Question 10

Acceptor impurity atom in germanium results in

Test: Basics of Semiconductor - Question 11

In germanium at room temperature, the forbidden energy gap EG is about

Test: Basics of Semiconductor - Question 12

In silicon at room temperature, the forbidden energy gap EG is about

Test: Basics of Semiconductor - Question 13

Heavy doping of a semiconductor corresponds to impurity concentration of 1 part in

Test: Basics of Semiconductor - Question 14

In any conductor, the hall voltage VH is proportional to

Where B is the existing magnetic field

Test: Basics of Semiconductor - Question 15

At 0 deg K the percentage of quantum state occupied upto Fermi level is

Test: Basics of Semiconductor - Question 16

In an n-type semiconductor, as temperature T increases, the Fermi level EF

Test: Basics of Semiconductor - Question 17

A semiconductor has ………… temperature coefficient of resistance.

Test: Basics of Semiconductor - Question 18

Intrinsic semiconductor material is characterized by a valence shell of how many electrons?

Test: Basics of Semiconductor - Question 19

In a p - type semiconductor, as the acceptor concentration NA is increased, the Fermi level

Test: Basics of Semiconductor - Question 20

In extrinsic semiconductor, conductivity varies with respect to temperature.

Detailed Solution for Test: Basics of Semiconductor - Question 20

For Extrinsic Semiconductors: The conductivity decreases with rise in temperature. This is because the number of e- hole pairs increases rapidly heading to lesser effect of doping & more of neutralization of these pairs.

Test: Basics of Semiconductor - Question 21

Extrinsic semiconductor is a

Test: Basics of Semiconductor - Question 22

As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor …

Test: Basics of Semiconductor - Question 23

Which of following is not a trivalent impurity atom?

Test: Basics of Semiconductor - Question 24

With the use of hall effect we can determine

Test: Basics of Semiconductor - Question 25

Of a given specimen, hall voltage is negative the semiconductor will be

## Basic Electronics Engineering for SSC JE (Technical)

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## Basic Electronics Engineering for SSC JE (Technical)

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