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Electronic Principles

Electronic Principles
Silicon atoms combine into an orderly pattern called a

Semiconductor
Valence orbit
None of these
Crystal
Covalent bond

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Electronic Principles
At room temperature an intrinsic semiconductor has

a few free electrons and holes
No holes
many free electrons
many holes
None of these

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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

down
nowhere
None of these
up
off the load line

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Electronic Principles
Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs?

P = E2/R
P = IE
None of these
P = I2R
I = P/E

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Electronic Principles
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?

300 mW
10 mW
20 mW
None of these
200 mW

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Electronic Principles
1 Microfarad is the same as:

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

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