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Electronic Principles

Electronic Principles
Silicon atoms combine into an orderly pattern called a

Covalent bond
Crystal
None of these
Semiconductor
Valence orbit

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Electronic Principles
1 Microfarad is the same as:

1000 millifarads
1 millionth of a picofarad
1 million picofarads
None of these
1 million farads

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Electronic Principles
What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz?

None of these
628 Ohm
100 Ohm
444 Ohm
Less than 1 Ohm

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Electronic Principles
What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?

None of these
3 W
6 W
64 W
122 W

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Electronic Principles
A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current?

300 mA
None of these
208 mA
200 mA
7.8 mA

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Electronic Principles
If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point

nowhere
up
off the load line
None of these
down

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