Quantum Mechanics and BJTs Quiz

Quantum Mechanics and BJTs Quiz

University

20 Qs

quiz-placeholder

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Quantum Mechanics and BJTs Quiz

Quantum Mechanics and BJTs Quiz

Assessment

Quiz

Mathematics

University

Practice Problem

Hard

Created by

Yogananda EEE)

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which quantum mechanical effect is primarily responsible for Zener breakdown?

Photoelectric effect

Compton scattering

Tunneling

Thermionic emission

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the diode equation, what happens to the current if V becomes significantly larger than nVt?

It saturates

It approaches Is

It increases linearly

It increases exponentially

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The base width modulation in BJTs is responsible for which phenomenon?

Thermal runaway

Early effect

Zener effect

Avalanche multiplication

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which parameter best quantifies the sharpness of the knee in a Zener diode I-V curve?

Zener resistance

Breakdown voltage

Zener impedance

Reverse saturation current

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does increasing the doping in a P-N junction affect the built-in potential (Vbi)?

Decreases

Remains constant

Increases

Depends on temperature only

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which current component is negligible in the reverse-biased base-emitter junction of a BJT?

Hole current

Diffusion current

Drift current

Minority carrier current

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The transition capacitance of a P-N junction diode increases when:

Forward biased

Reverse biased and voltage increases

Reverse biased and voltage decreases

Connected in series

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