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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 Test Help For Physics Subject Test Prep. All Admissions Test. All Jobs Test prep. Medical Test prep. Engineering Test prep.

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.

## Physics

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

Question 1 of 15

2. Which of the following is an amorphous solid?

Question 2 of 15

3. Which of the following logic gates is an universal gate?

Question 3 of 15

4. At 0 K temperature, a p-type semiconductor

Question 4 of 15

5. In n-type semiconductor, majority charge carriers are

Question 5 of 15

6. Zener diode acts as a/an

Question 6 of 15

7. Consider an n-p-n transistor amplifier in common emitter configuration. The current gain of the transistor is 100. If the collector current changes by 1mA, what will be the change in emitter current

Question 7 of 15

8. 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 8 of 15

9. Boolean algebra is essentially based on:

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. 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 11 of 15

12. In a full wave rectifier circuit operating from 50 Hz mains frequency, what is the fundamental frequency in the ripple?

Question 12 of 15

13. 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 13 of 15

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

Question 14 of 15

15. The voltage gain of the following amplifier is Question 15 of 15

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