P N Junction -Multiple Choice Questions Quiz

Interactive MCQs on “P N Junction”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is a P-N junction?

(a) A junction between a proton and a neutron
(b) A junction between two parallel conductors
(c) A junction between a P-type semiconductor and an N-type semiconductor
(d) A junction between a positive charge and a negative charge

Question 2: What happens when a P-N junction is forward-biased?

(a) Current flows easily through the junction
(b) Current flows from N-type to P-type region
(c) Current flows from P-type to N-type region
(d) No current flows through the junction

Question 3: What is the process called when a P-N junction allows current flow in only one direction?

(a) Reverse biasing
(b) Forward biasing
(c) Biasing imbalance
(d) Diode effect

Question 4: What happens when a P-N junction is reverse-biased?

(a) Current flows easily through the junction
(b) Current flows from N-type to P-type region
(c) Current flows from P-type to N-type region
(d) No current flows through the junction

Question 5: What is the depletion region in a P-N junction?

(a) The region with the highest concentration of charge carriers
(b) The region where electrons are removed from the N-type semiconductor
(c) The region with an equal number of positive and negative charge carriers
(d) The region near the junction where charge carriers are depleted

Question 6: What is the barrier potential in a forward-biased P-N junction?

(a) The potential difference across the entire P-N junction
(b) The potential difference across the depletion region
(c) The potential difference between the P-type region and the N-type region
(d) The potential difference between the positive and negative terminals of the applied voltage

Question 7: What is the process called when electrons and holes recombine in a P-N junction?

(a) Diffusion
(b) Depletion
(c) Recombination
(d) Conduction

Question 8: Which of the following devices is based on the principle of the P-N junction?

(a) Light-emitting diode (LED)
(b) Electric motor
(c) Transformer
(d) Capacitor

Question 9: Which of the following is NOT a characteristic of a P-N junction diode?

(a) Non-linear current-voltage relationship
(b) Allowing current flow in one direction
(c) Conducting equally well in both directions
(d) Fast response time

Question 10: What is the main application of a P-N junction diode in electronic circuits?

(a) Voltage regulation
(b) Current amplification
(c) Energy storage
(d) Signal modulation