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This mock test of Test: Small Signal Operations & Model for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam.
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QUESTION: 1

A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of gm.

Solution:

QUESTION: 2

A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of R?p.

Solution:

QUESTION: 3

A transistor with ß = 120 is biased to operate at a dc collector current of 1.2 mA. Find the value of Re.

Solution:

QUESTION: 4

A transistor operating with nominal gm of 60 mA/V has a ß that ranges from 50 to 200. Also, the bias circuit, being less than ideal, allows a 20% variation in Ic. What is the smallest value found of the resistance looking into the base?

Solution:

QUESTION: 5

A transistor operating with nominal gm of 60 mA/V has a ß that ranges from 50 to 200. Also, the bias circuit, being less than ideal, allows a 20% variation in Ic. What is the largest value found of the resistance looking into the base?

Solution:

QUESTION: 6

A designer wishes to create a BJT amplifier with a gm of 50 mA/V and a base input resistance of 2000 O or more. What is the minimum ß he can tolerate for the transistor used?

Solution:

QUESTION: 7

A designer wishes to create a BJT amplifier with a gm of 50 mA/V and a base input resistance of 2000 O or more. What emitter bis current should he choose?

Solution:

QUESTION: 8

Which of the following is true?

Solution:

The correct relationship between Ic and Ie is Ib = Ic/ß.

QUESTION: 9

The SI units of transconductance is

Solution:

Transcoductance is given by Ic/Vt.

QUESTION: 10

Which of the following represents the correct mathematical form of the term denoted by the symbol Rp?

Solution:

Both of the expressions are identical.

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