What is the most common semiconductor material used in the manufacturing of diodes?

• Silicon

• Germanium

• Gallium arsenide

• Carbon

Which of the following statements is true about a reverse-biased diode?

• It conducts heavily

• It has a low resistance

• It blocks current flow

• It has a negative voltage drop

In which direction does current flow through a diode when it is forward biased?

• From anode to cathode

• From cathode to anode

• It doesn't flow

• Randomly

What happens to a diode's forward voltage drop as temperature increases?

• It decreases

• It increases

• It remains constant

• It becomes negative

What is the main purpose of a diode in a DC power supply circuit?

• To rectify AC voltage

• To regulate DC voltage

• To amplify current

• To filter noise

What is the function of a diode in an electronic circuit?

• To amplify voltage

• To amplify current

• To regulate voltage

• To regulate current

Which terminal of a diode is typically connected to the higher voltage in a forward-biased configuration?

• Anode

• Cathode

• Base

• Collector

What is the primary factor determining the width of the depletion region in a PN junction diode?

• Forward bias voltage

• Reverse bias voltage

• Doping concentration

• Temperature

What happens to the potential barrier across a PN junction diode when it is forward biased?

• It increases

• It decreases

• It remains constant

• It disappears

Which of the following statements is true about the reverse leakage current in a PN junction diode?

• It increases with increasing reverse bias voltage

• It decreases with increasing reverse bias voltage

• It remains constant with reverse bias voltage

• It depends only on the doping concentration