Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage remains at one polarity but changes value periodically
The voltage remains at one polarity and at a steady level
The voltage reverses polarity periodically
The voltage causes current to flow in two directions at the same time
None of these

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

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

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Electronic Principles
The total inductance of a series inductor circuit is:

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

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