Electronic Principles
What form of energy is used for creating static electricity?

Light energy
Chemical energy
None of these
Solar energy
Mechanical energy

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Electronic Principles
Which one of the following statements best applies to a parallel RLC circuit?

All of these
The current waveform for each component always has the same amplitude and phase as the applied current
The voltage waveform for each component always has the same amplitude and phase as the applied voltage
None of these
The sum of the current is always less than the applied current

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

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 south magnetic pole
that would be attracted to the earth's north magnetic pole
None of these

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

None of these
The force of attraction between the poles of a permanent and temporary magnetic field
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The amount of magnetic flux that is not confined to the core material of an electromagnet
The circular magnetic field that surrounds a conductor carrying a current

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