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Electronic Principles

Electronic Principles
Silicon atoms combine into an orderly pattern called a

Crystal
Covalent bond
Semiconductor
None of these
Valence orbit

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Electronic Principles
Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?

200 k Ohm or more
20 k Ohm or more
None of these
20 km or less
200 k Ohm or less

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Electronic Principles
What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?

None of these
90 degree
0 degree
180 degree
26.6 degree

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Electronic Principles
A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

7.5 V
8 V
3 V
16 V
None of these

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Electronic Principles
In an intrinsic semiconductor, the number of free electrons

Is less than the number of holes
None of these
Is greater than the number of holes
Impossible to say
Equals the number of holes

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

Impossible to say
Neutral
Weak
Strong
None of these

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