Electronic Principles – Section 2

26. The north pole of a magnet is the one:

A. that has its molecules arranged in a random pattern
B. that would be attracted to the earth’s north magnetic pole
C. that would be repelled by the south pole of another magnet
D. that would be attracted to the earth’s south magnetic pole
E. None of the above

Correct Answer:  B. that would be attracted to the earth’s north magnetic pole

27. A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value?

A. 90 Ohm – 101 ohm
B. 90 Ohm – 110 ohm
C. 98 Ohm – 100.1 ohm
D. 99 Ohm – 102 ohm
E. None of the above

Correct Answer:  B. 90 Ohm – 110 ohm

28. When a parallel RLC circuit is operating at its resonant frequency:

A. capacitive reactance is greater than the inductive reactance
B. inductive reactance is greater than the capacitive reactance
C. inductive reactance is equal to the capacitive reactance
D. the difference between inductive and capacitive reactance is equal to the resistance
E. None of the above

Correct Answer:  C. inductive reactance is equal to the capacitive reactance

29. For normal operation of the transistor, the collector diode has to be

A. Forward-biased
B. Reverse-biased
C. Nonconducting
D. Operating in the breakdown region
E. None of the above

Correct Answer:  B. Reverse-biased

30. In a step-down transformer, which is larger?

A. Primary voltage
B. Secondary voltage
C. Neither
D. Impossible to say
E. None of the above

Correct Answer:  A. Primary voltage

Leave A Comment?

5 × 3 =