Diode and Semiconductor Quiz

A semiconductor diode has a very high internal resistance when forward biased.

• True

• False

A semiconductor diode has no polarity.

• True

• False

A semiconductor diode is made from doped semiconductor materials.

• True

• False

What is the equation used to calculate the power dissipated across a diode?

• PD=UDxID

• PD=UDxRD

• PD=UD2xID

• All options are incorrect

Why is there a depletion region at the junction?

• Manufacturing defects

• All options are incorrect

• Due to drift of charge carriers in the electric field

• The diffusion of charge carriers allows recombination to occur at the junction

Which of the following will NOT damage a diode?

• Excessive voltage across the diode

• Excessive frequency of current through the diode

• Excessive current through the diode

• None of the options are correct

What types of currents will appear when two N-type and P-type semiconductors are joined together?

• Drift current and ion current

• Free electron current and valence electron current

• Drift and diffusion currents of both electrons and holes

• Diffusion current of holes and drift current of electrons

In N-type semiconductors, what is the majority charge carrier?

• Electron

• Positive ion

• Hole

• No charge carrier is majority

Which of the following is the most accurate explanation of the AC internal resistance of a diode?

• The variation of internal resistance of the diode when working with AC signals

• The internal resistance of the diode when a voltage is applied across it

• The variation of internal resistance of the diode when switching from forward to reverse bias

• The variation of internal resistance of the diode over time

In a half-wave rectifier circuit with an ideal diode, when the diode is in reverse bias, the current through the load is:

• Less than 0

• Greater than 0

• Equal to 0

• At maximum