Electronic Devices-Junction Transistor (AIIMS Physics): Questions 1 - 5 of 6

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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 » Junction Transistor

Appeared in Year: 2003

MCQ▾

Question

In the following common emitter configuration an ‘NPN’ transistor with current gain β=100 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: 3

» Electronic Devices » Junction Transistor

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

In a transistor the base is made thin.

Reason (Ꭱ)

Thin base makes the transistor stable.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

Question number: 4

» Electronic Devices » Junction Transistor

MCQ▾

Question

Consider an N – P – N transistor amplifier in common-emitter configuration. The current gain of the transistor is 80. If the collector current changes by 4 mA, what will be the change in emitter current –

Choices

Choice (4) Response

a.

1.04mA

b.

20 mA

c.

4.05 mA

d.

1.5 mA

Question number: 5

» Electronic Devices » Junction Transistor

MCQ▾

Question

In an NPN transistor amplifier for common – emitter configuration, the current gain of the transistor is 160 and the collector current changes by 0.8 mA, so find the change in emitter current.

Choices

Choice (4) Response

a.

1.805mA

b.

0.08 mA

c.

1.8 mA

d.

0.805 mA

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