Exercise: Electronic Principles

Questions for: Electronic Principles

The emitter diode is usually
A:
Forward-biased
B:
Reverse-biased
C:
Nonconducting
D:
Operating in the breakdwon region
Answer: A
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A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
A:
3 V
B:
16 V
C:
7.5 V
D:
8 V
Answer: A
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How many protons does the nucleus of a silicon atom contain?
A:
4
B:
29
C:
14
D:
48
Answer: C
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An audio transformer has a turn ratio of 9, What is its impedance ratio?
A:
81
B:
85
C:
6
D:
9
Answer: A
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An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?
A:
Doping
B:
Valence electrons
C:
Free electrons
D:
Thermal energy
Answer: D
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