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Electronic Principles

Electronic Principles
How many protons does the nucleus of a silicon atom contain?

48
None of these
14
29
4

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Electronic Principles
A typical light switch in your home is a:

None of these
rotary switch
momentary push button switch
knife switch
toggle switch

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Electronic Principles
Who invented the first junction transistor?

Gomes
Fisher
None of these
Shockley
Smith

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

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

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Electronic Principles
Current can flow through a normally open push button switch as long as:

you are pressing the button
None of these
its contact remain open
its contact remain open
you are not pressing the button

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Electronic Principles
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?

None of these
Thermal energy
Valence electrons
Doping
Free electrons

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