Punjab 12th Class Physics Chapter 7 Electronics Mcqs Test Online Punjab 12th Class Physics Chapter 7 Electronics Mcqs Test Online 123456 Question 1 of 6Physics 1. The reverse saturation current in a PN junction diode is only due to: 1.Donor ions 2.Majority carriers 3.Minority carriers 4.Acceptor ions Question 1 of 6Question 2 of 6 2. When transistors are used ion digital circuit they usually operate in the: 1.Saturation and cutoff regions 2.Active region 3.Breakdown region 4.Linear region Question 2 of 6Question 3 of 6 3. Most of the electrons in the base of an NPN transistor flow: 1.Into the emit 2.Into the collector 3.Out of the base lead 4.Into the base supply Question 3 of 6Question 4 of 6 4. Improper biasing of a transistor circuit produces: 1.Excessive heat at collector terminal 2.Distortion in the output signal 3.Heavy loading of emitter current 4.Faulty location of load line Question 4 of 6Question 5 of 6 5. In an N-type silicon, which of the following statement is true: 1.Electrons are majority carriers and trivalent atoms are the dopants 2.Electrons are minority carriers and pentavalent atoms are the dopants 3.Hole are minority carriers and pentavalent atoms are the dopants 4.Hole are majority carriers and trivalent atoms are the dopants Question 5 of 6Question 6 of 6 6. In a transistor, collector current is controlled by: 1.Collector resistance 2.All of the above 3.Base current 4.Collector voltage Question 6 of 6 Loading... Test By Subject Punjab Test By Topics 12th Class Physics You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.