Electronic Principles
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:

None of these
One-half the primary current
No more than 10% less than the primary current
Twice the primary current
Same as the primary current

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

None of these
The total current is equal to the sum of the currents for the resistance and capacitance
The total current is less than the sum of the currents for the resistance and capacitance
The total current is greater than the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit

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

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

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