Question: A hole and electron in close proximity would tend to________________?

• 1. Repel each other
• 2. Attract each other
• 3. Have no effect on each other
• 4. None of the above

Question: The battery connections required to forward bias a pn junction are_________________?

• 1. +ve terminal to p and –ve terminal to n
• 2. -ve terminal to p and +ve terminal to n
• 3. -ve terminal to p and –ve terminal to n
• 4. None of the above

Question: In the depletion region of a pn junction, there is a shortage of_________________?

• 1. Acceptor ions
• 2. Holes and electrons
• 3. Donor ions
• 4. None of the above

Question: A pn junction acts as a__________________?

• 1. Controlled switch
• 2. Bidirectional switch
• 3. Unidirectional switch
• 4. None of the above

Question: In an intrinsic semiconductor, the number of free electrons_____________?

• 1. Equals the number of holes
• 2. Is greater than the number of holes
• 3. Is less than the number of holes
• 4. None of the above

Question: When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on_________________?

• 1. Junction capacitance
• 2. Minority carriers
• 3. Majority carriers
• 4. None of the above

Question: The leakage current in a pn junction is of the order of________________?

• 1. Aa
• 2. mA
• 3. kA
• 4. µA

Question: The leakage current across a pn junction is due to________________?

• 1. Minority carriers
• 2. Majority carriers
• 3. Junction capacitance
• 4. None of the above

Question: With forward bias to a pn junction , the width of depletion layer__________________?

• 1. Decreases
• 2. Increases
• 3. Remains the same
• 4. None of the above

Question: At room temperature, an intrinsic semiconductor has_______________?

• 1. Many holes only
• 2. A few free electrons and holes
• 3. Many free electrons only
• 4. No holes or free electrons