40 TOP BIPOLAR JUNCTION TRANSISTORS (BJT) Online Test – Questions and Answers

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

 
 
 
 

2. A transistor may be used as a switching device or as a:

 
 
 
 

3. Voltage-divider bias provides:

 
 
 
 

4. Three different Q points are shown on a dc load line. The upper Q point represents the:

 
 
 
 

5. To operate properly, a transistor’s base-emitter junction must be forward biased with reverse bias applied to which junction?

 
 
 
 

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

 
 
 
 

7. With low-power transistor packages, the base terminal is usually the:

 
 
 
 

8. What is the current gain for a common-base configuration where IE = 4.2 mA and IC = 4.0 mA?

 
 
 
 

9. In a C-E configuration, an emitter resistor is used for:

 
 
 
 

10. The C-B configuration is used to provide which type of gain?

 
 
 
 

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