Electronic Principles – Section 3

36. If the base supply voltage increases, the Q point moves

A. down
B. up
C. nowhere
D. off the load line
E. None of the above

Correct Answer:  A. down

37. Positive ions are atoms that have

A. Gained a proton
B. Lost a proton
C. Gained an electron
D. Lost an electron
E. None of the above

Correct Answer:  D. Lost an electron

38. Which one of the following is a statement of Kirchhoff’s current law?

A. The current through a resistance is proportional to the value of resistance and the IR drop across it
B. The total current in a parallel circuit is less than the value of the smallest current
C. The algebraic sum of currents in a loop is equal to zero
D. The algebraic sum of currents entering and leaving a point is equal to zero
E. None of the above

Correct Answer:  C. The algebraic sum of currents in a loop is equal to zero

39. Which one of the following statements is true?

A. inductive reactance decreases with operating frequency
B. inductive reactance is at a maximum for dc source voltages
C. inductive reactance increases with operating frequency
D. There is no meaningful relationship between inductive reactance and operating frequency
E. None of the above

Correct Answer:  C. inductive reactance increases with operating frequency

40. A Zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?

A. 200 mW
B. 300 mW
C. 20 mW
D. 10 mW
E. None of the above

Correct Answer:  A. 200 mW

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