Understanding p-n Junction Diodes

What are the two main regions in a p-n junction diode?

• A) n-type and p-type

• B) Positive and negative regions

• C) Metal and semiconductor regions

In forward bias, what happens to the current flow in a p-n junction diode?

• A) No current flows

• B) Current flows freely

• C) Current flows in the opposite direction

What is the primary function of a p-n junction diode?

• A) To amplify signals

• B) To allow current to flow in one direction

• C) To store electrical energy

What happens to the depletion region in a p-n junction diode when it is reverse biased?

• A) It widens

• B) It narrows

• C) It remains the same

Which material is typically used for the p-type region in a p-n junction diode?

• A) Silicon doped with boron

• B) Germanium doped with phosphorus

• C) Copper

What is the effect of temperature on the conductivity of a p-n junction diode?

• A) Conductivity decreases with temperature

• B) Conductivity remains constant

• C) Conductivity increases with temperature

What is the role of doping in the formation of a p-n junction diode?

• A) To create a depletion region

• B) To increase the resistance

• C) To introduce charge carriers

What is the effect of forward bias on the depletion region of a p-n junction diode?

• A) It widens

• B) It narrows

• C) It disappears

Which type of semiconductor is created by doping with elements that have fewer valence electrons?

• A) n-type

• B) p-type

• C) intrinsic

What is the primary charge carrier in a p-type semiconductor?

• A) Electrons

• B) Holes

• C) Ions