Electronic Principles
Which one of the following statements applies to common auto batteries?

None of these
Auto batteries are primary wet-cell batteries
Auto batteries are primary dry-cell batteries
Auto batteries are secondary wet-cell batteries
Auto batteries are secondary dry-cell batteries

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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
None of these
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

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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 less 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
The total current is equal to 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

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