Electronics Test  Random

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Instruction:
Total number of questions : 20.
Time alloted : 30 minutes.
Each question carry 1 mark, no negative marks.
1. 
The inductance value of L_{3} in the given figure is _____ if the total inductance is 340 mH. 

2. 
______________ is shuttled back and forth between the source and load. 

3. 
An astable multivibrator is a circuit that: 

4. 
What is the impedance of this circuit?

Answer: Option A
Explanation:
Impedance Cannot be Directly Measured, We Need to find X_{c} first.
So,
X_{c} = 1/2πfC.
X_{c} = 1/( 2 x 3.14 x 5000 x 0.01 x 10^{6} ).
X_{c} = 3184.7.
Z = Sqrt( X_{c}^{2} + R^{2} ).
Z = Sqrt( 3184.7^{2} + 5000^{2} ).
Z = 5928 Ω. Learn more problems on : Capacitors Discuss about this problem : Discuss in Forum

5. 
The input voltage must be ______ in the given circuit to obtain the given output voltage. 

6. 
Once a DIAC is conducting, the only way to turn it off is with: 

7. 
What is wrong, if anything, with this circuit?


8. 
What term expresses the frequency of a rectangular wave? 

9. 
Power companies supply ac, not dc, because: 

10. 
The time interval between the memory receiving a new address input and the data being available is called _________. 

11. 
The sine of a given angle is equal to the ratio of the hypotenuse to the opposite side. 

12. 
What property does an incandescent lamp possess? 

13. 
When grouping cells within a Kmap, the cells must be combined in groups of ________. 

14. 
Incorrect codes are a form of output error for a digitaltoanalog converter (DAC). 

15. 
Subtracting 18 × 10^{2} from 480 × 10^{1} results in 30 × 10^{2}. 

16. 
Which circuit is known as a currenttovoltage converter? 

17. 
Connecting a capacitor filter to the circuit in the given circuit will___. 

18. 
The voltage out when a 10 k load is connected is 5.7 volts.


20. 
DC power should be connected to forward bias a diode as follows: 

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