Punjab 12th Class Physics Chapter 7 Electronics Mcqs Test Online

Question 1 of 6

Physics

1. In an N-type silicon, which of the following statement is true:

1.Hole are majority carriers and trivalent atoms are the dopants

2.Electrons are majority carriers and trivalent atoms are the dopants

3.Hole are minority carriers and pentavalent atoms are the dopants

4.Electrons are minority carriers and pentavalent atoms are the dopants

Question 1 of 6

Question 2 of 6

2. When transistors are used ion digital circuit they usually operate in the:

1.Active region

2.Breakdown region

3.Saturation and cutoff regions

4.Linear region

Question 2 of 6

Question 3 of 6

3. In a transistor, collector current is controlled by:

1.Collector resistance

2.Base current

3.All of the above

4.Collector voltage

Question 3 of 6

Question 4 of 6

4. The reverse saturation current in a PN junction diode is only due to:

1.Minority carriers

2.Majority carriers

3.Donor ions

4.Acceptor ions

Question 4 of 6

Question 5 of 6

5. Improper biasing of a transistor circuit produces:

1.Heavy loading of emitter current

2.Distortion in the output signal

3.Faulty location of load line

4.Excessive heat at collector terminal

Question 5 of 6

Question 6 of 6

6. Most of the electrons in the base of an NPN transistor flow:

1.Into the base supply

2.Out of the base lead

3.Into the emit

4.Into the collector

Question 6 of 6

Punjab 12th Class Physics Chapter 7 Electronics Mcqs Test Online