Electronic Principles
A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff?

None of these
60 Ohm
10 Ohm
100 Ohm or more
50 Ohm

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a positive charge and a proton has a negative charge
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has no charge
An electron has a negative charge and a proton has no charge
None of these

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Electronic Principles
The north pole of a magnet is the one:

that would be attracted to the earth's south magnetic pole
None of these
that has its molecules arranged in a random pattern
that would be repelled by the south pole of another magnet
that would be attracted to the earth's north magnetic pole

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Electronic Principles
The total inductive reactance of a parallel inductor circuit is:

equal to the sum of the individual inductive-reactance values
equal to the source voltage divided by total current
equal to the sum of the individual inductance values
None of these
less than the inductance value of the smallest inductor

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