Computer Science - Electronic Principles

31. 

What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm

A. 180 degree
B. 30 degree
C. 45 degree
D. 75 degree
E. None of the above

Answer: Option C

Explanation:

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32. 

Molecule is

A. The smallest particle of a substance that retains the properties of that substance
B. A atom that has a shortage of electrons in its outer orbit
C. A atom that has an excessive number of electrons in its outer orbit
D. A atom that flows whenever there is an imbalance of electrical charges between two points
E. None of the above

Answer: Option A

Explanation:

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33. 

What form of energy is used for creating static electricity?

A. Solar energy
B. Mechanical energy
C. Chemical energy
D. Light energy
E. None of the above

Answer: Option D

Explanation:

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34. 

Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA?

A. 0.17 V
B. 10.17 V
C. 20 V
D. 18.8 V
E. None of the above

Answer: Option A

Explanation:

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35. 

A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current?

A. 3.75 mA
B. 3.2 mA
C. 0.05 mA
D. 13 mA
E. None of the above

Answer: Option A

Explanation:

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