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Electronic Principles

Electronic Principles
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

37.4 V
38.74 V
35.4 V
None of these
30.4 V

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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?

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

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Electronic Principles
The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current?

14.8 µA
7.75 µA
7.8 µA
10.3 µA
None of these

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Electronic Principles
What are the main parts of an atom?

Protons only
Electrons, protons, and ions
Electrons, protons, and neutrons
None of these
Electrons, ions, and neutrons

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Electronic Principles
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?

Strong
Neutral
Weak
Impossible to say
None of these

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Electronic Principles
When the graph of current versus voltage is a straight line, the device is referred to as

Linear
Active
Nonlinear
None of these
Bipolar

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