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Solids Semi Conductor Devices and Communication System Test Online

Test Name Solids & Semi Conductor Devices and Communication System Test
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Solids & Semi Conductor Devices and Communication System Test Being Provided over here. Attempt online multiple choice questions of Solids and Semi Conductors Devices and also get Communication System Test at this page.

Solids Semi Conductor Devices and Communication System Test Online

Physics

1. Which one of the following is true about the p-type and n-type semi-conductor?

 

Question 1 of 15

2. Zener diode acts as a/an

 

Question 2 of 15

3. The transfer ratio β of a transistor is 50. The input resistance of the transistor when used in the common emitter configuration is 1kΩ. The peak value of the collector A.C. current for an A.C. input voltage of 0.01 V, is

 

Question 3 of 15

4. The circuit given below represents which of logic operations

42

Question 4 of 15

5. When the two semiconductors p- and n-type are brought into contact they form a p-n junction, which acts like a/an

 

Question 5 of 15

6. The variation of anode current in a triode valve corresponding to a change in grid potential at three different values of the plate potential is shown in the given figure. The mutual conductance of triode is:

 

37

Question 6 of 15

7. The value of current gain α of a transistor is 0.98. The value of β will be:

 

Question 7 of 15

8. In a diode, when there is a saturation current the plate resistance will be:

 

Question 8 of 15

9.  

A B Q
0 0 0
0 1 1
1 0 1
1 1 1

The truth table given above for which of the following gates is correct:

 

Question 9 of 15

10. In communication with help of antenna if height is double then the range covered which was initially r would become

 

Question 10 of 15

11. A triode valve has an amplification factor of 20 and its plate is given a potential of 300 V. The grid voltage to reduce the plate current to zero is:

 

Question 11 of 15

12. In p-type semiconductor major current carriers are:

 

Question 12 of 15

13. If the highest modulating frequency of the wave is 5 kHz, the number of stations that can be accomdated in a 150 kHz bandwidth are

 

Question 13 of 15

14. Boolean algebra is essentially based on:

 

Question 14 of 15

15. Which of the following is an amorphous solid?

 

Question 15 of 15


 

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