Quiz on Semiconductor Devices

What is the primary function of electronics?

• To measure temperature changes

• To analyze chemical reactions

• To study how electrons move through various media

• To study the movement of protons

Who invented the first electron tube?

• Thomas Edison

• John Bardeen

• Lee DeForest

• Gustav Kirchhoff

What are the two types of transistors mentioned?

• NPN and PNP

• PNP and FET

• BJT and FET

• NPN and JFET

What is the forbidden band gap energy for semiconductors?

• 2 eV

• 1 eV

• 5 eV

• 0.5 eV

What is the primary characteristic of a P-type semiconductor?

• High resistivity

• Excess electrons

• Excess holes

• Equal number of electrons and holes

What happens to the depletion layer in a forward-biased junction diode?

• It becomes wider

• It remains unchanged

• It becomes thinner

• It disappears completely

What is the typical forward voltage drop for silicon diodes?

• 1.0 V

• 0.7 V

• 0.5 V

• 0.3 V

What is the main purpose of a Zener diode?

• To regulate voltage

• To rectify AC to DC

• To store energy

• To amplify signals

In a bipolar junction transistor, which terminal is common in the common-emitter configuration?

• Emitter

• Base

• Collector

• Ground

What is the effect of temperature on the reverse saturation current of a diode?

• It remains constant

• It decreases

• It doubles for every 10°C increase

• It becomes negligible