Electronic Principles
If a load resistance is 1 kW, a stiff current source has a resistance of

Less than 100 k Ohm
None of these
Less than 10 Ohm
At least 10 Ohm
More than 100 k Ohm

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Electronic Principles
What is a free electron?

None of these
An electron that has been freed from its parent atom
An electron that has twice the amount of charge of a normal electron
An electron that has no electrical charge
An electron that costs nothing

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Electronic Principles
The peak value of a sine waveform is:

the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value
None of these
the amplitude at 70.7% of the maximum value
the maximum positive or negative value

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