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Electronic Principles

Electronic Principles
When the collector current increases, what does the current gain do?

stays the same
any of the above
None of these
decreases
increases

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Electronic Principles
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?

0.625 W
80 W
None of these
325 kW
0.24 W

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Electronic Principles
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

0.041666666666667
0.93 W
None of these
9.3 W
0.93 V

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?

There is no valid comparison
Permeance
Retentivity
Permeability
Reluctance

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Electronic Principles
A device that converts mechanical into electrical energy is?

solar cell
chemical cell
thermocouple
None of these
generator

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Electronic Principles
The direction of electron current flow is:

None of these
from negative to positive
from positive to negative
from neutral to positive
from right to left

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