Understanding PN Junction Diodes

What are some common applications of PN junction diodes?

• Resistors in voltage dividers

• Common applications of PN junction diodes include rectifiers, voltage regulators, signal modulators, and LEDs.

• Capacitors in filters

• Transistors in amplifiers

Describe the current-voltage characteristics of a PN junction diode.

• The current-voltage characteristics show a linear increase in both forward and reverse bias.

• The diode conducts equally in both forward and reverse bias conditions.

• Current remains constant regardless of the applied voltage across the diode.

• The current-voltage characteristics of a PN junction diode show exponential current increase in forward bias and minimal current in reverse bias until breakdown.

What happens to a PN junction diode in forward bias?

• The diode becomes an insulator.

• The diode generates voltage.

• The diode conducts current.

• The diode blocks current.

How does reverse bias affect a PN junction diode?

• Reverse bias decreases the depletion region and allows current flow.

• Reverse bias has no effect on the depletion region or current flow.

• Reverse bias increases the depletion region and prevents current flow in a PN junction diode.

• Reverse bias increases current flow through the diode.

What impact does temperature have on the performance of diodes?

• Temperature has no effect on diode performance.

• Temperature only affects the physical size of diodes.

• Temperature impacts diodes by reducing forward voltage drop and increasing reverse leakage current.

• Higher temperatures always improve diode efficiency.

what is cut in voltage of Si diode during forward bias?

• 0.6

• 0.3

• 0.7

• 0.8