Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage is equal to the sum of the individual voltages in a series circuit
The total voltage in a series circuit is always less than the value of the smallest voltage
None of these

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

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

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

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Electronic Principles
Which one of the following statements is true for the voltage in a parallel RL circuit?

The total voltage lags the total current by less than 90
The total voltage is equal to the sum of the voltages across the resistance and inductance
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltages is less than the sum of the voltages across the resistance and inductance

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