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Electronic Principles

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

14
4
48
29
None of these

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Electronic Principles
Current and voltage are said to be in phase when:

they have the same amplitude and frequency
None of these
All of these
their waveforms are both ac or both dc
their waveforms cross through zero and reach positive and negative peaks at the same time

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Electronic Principles
When the Q point moves along the load line, the voltage increases when the current

Increases
Can be any of above
Stays the same
Decreases
None of these

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Electronic Principles
A dielectric material is:

a good conductor
None of these
a good insulator
a poor conductor of electrostatic fields
a good conductor of magnetic fields

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Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?

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

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Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

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

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