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Electronic Principles

Electronic Principles
Holes act like:

None of these
Atoms
Positive charges
Negative charges
Crystals

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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?

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

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Electronic Principles
As the temperature increases, the current gain

decreases
None of these
contant
can be any of the above
increases

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Electronic Principles
To get the Norton current, you have to

Open the voltage source
Short the load resistor
Short the voltage source
None of these
Open the load resistor

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Electronic Principles
A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding?

0.4 V
24 V
None of these
4.73
600 V

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Electronic Principles
If the base supply voltage increases, the Q point moves

up
nowhere
off the load line
None of these
down

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