Electronic Devices (AIIMS Physics): Questions 1 - 6 of 11

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Question number: 1

» Electronic Devices » Junction Transistor

Appeared in Year: 2005

MCQ▾

Question

Consider an N – P – N transistor amplifier in common-emitter configuration. The current gain of the transistor is 100. If the collector current changes by 1 mA, what will be the change in emitter current –

Choices

Choice (4) Response

a.

10 mA

b.

1.01mA

c.

1.1 mA

d.

0.01 mA

Question number: 2

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)

Appeared in Year: 1999

MCQ▾

Question

Boolean algebra is essentially based on –

Choices

Choice (4) Response

a.

symbol

b.

truth

c.

logic

d.

numbers

Question number: 3

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)

Appeared in Year: 2005

MCQ▾

Question

Out of the following, universal gate is –

Choices

Choice (4) Response

a.

NOT

b.

NAND

c.

AND

d.

OR

Question number: 4

» Electronic Devices » Semiconductors

Appeared in Year: 2003

MCQ▾

Question

To a germanium sample, traces of gallium are added as an impurity. The resultant sample could behave like –

Choices

Choice (4) Response

a.

an insulator

b.

a p-type semiconductor

c.

a n-type semiconductor

d.

a conductor

Question number: 5

» Electronic Devices » Junction Transistor

Appeared in Year: 2003

MCQ▾

Question

In the following common emitter configuration an ‘NPN’ transistor with current gain Equation is used the output voltage of amplifier will be –

Choices

Choice (4) Response

a.

0.1V

b.

10V

c.

10 mV

d.

1.0 V

Question number: 6

» Electronic Devices » Semiconductors

Appeared in Year: 2005

MCQ▾

Question

In semiconducting material the mobility of electrons and holes are Equation and Equation respectively. Which of the following is true?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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