Diode Functionality and Behavior

The video tutorial covers the characteristics of PN junction diodes, focusing on forward and reverse bias. It explains how the diode behaves under different biasing conditions, including the exponential and linear regions in forward bias and the breakdown regions in reverse bias. Practical diodes like the 1N4000 series and BY126/127 are discussed, highlighting their material composition and applications.

What is the primary function of a PN junction diode?

• To amplify signals

• To generate electricity

• To convert AC to DC

• To store energy

In forward bias, what happens to the depletion layer of a PN junction diode?

• It disappears completely

• It increases

• It decreases

• It remains the same

At what voltage does a silicon diode typically start conducting significantly in forward bias?

• 0.5 volts

• 0.3 volts

• 1.0 volts

• 0.7 volts

What is the behavior of the current in the exponential region of a forward-biased diode?

• It remains constant

• It increases linearly

• It increases exponentially

• It decreases

In reverse bias, what type of current primarily flows through the diode?

• Majority carrier current

• Minority carrier current

• No current

• Alternating current

What occurs at the reverse breakdown voltage in a diode?

• The diode stops conducting

• The diode becomes an insulator

• The diode gets damaged

• The diode starts conducting heavily

What is the state of a diode in reverse bias?

• On state

• Off state

• Short circuit

• Conducting state

What does the '1N' in the 1N4000 series diode represent?

• Two junction device

• Four junction device

• One junction device

• Three junction device

Which material is indicated by the letter 'B' in the BY126 diode?

• Indium

• Silicon

• Germanium

• Gallium

What is the primary application of the BY126 diode?

• Rectification

• Power storage

• Signal amplification

• Voltage regulation