Exercise: Electronic Principles

Questions for: Electronic Principles

The period of a waveform is:
A:
the time required to complete one full cycle
B:
the number of cycles completed in one second
C:
the time required for the voltage to rise from 10% to 90% of the peak amplitude
D:
equal to 0.707 times the peak amplitude
Answer: A
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The equivalent of 1 kV is:
A:
1.00 V
B:
1000 V
C:
100 mV
D:
1000 mV
Answer: B
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What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?
A:
220 ohm
B:
150 ohm
C:
445 ohm
D:
690 ohm
Answer: B
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The current gain of a transistor is defined as the ratio of the collector current to the
A:
base current
B:
emitter current
C:
supply current
D:
collector current
Answer: A
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Which one of the following principles best describes the basic operation of a generator?
A:
Like magnetic poles repel; unlike poles attract
B:
Current is induced in a conductor that is moving through a magnetic field
C:
Like magnetic poles attract; unlike poles repel
D:
Current flowing through a conductor generates a magnetic field
Answer: B
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