Electronic Principles
Current can flow through a normally open push button switch as long as:

you are pressing the button
None of these
its contact remain open
you are not pressing the button
its contact remain open

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Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

None of these
Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary dry-cell batteries
Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are primary wet-cell batteries

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Electronic Principles
Which one of the following phrases most accurately describes a purely capacitive circuit?

Resistances provide the only opposition to current flow
The ac voltage leads the current by 90 degree
Capacitive reactance provides the only opposition to current flow
Combinations of resistance and capacitive reactance provide any opposition to current flow
None of these

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

equal to the source voltage divided by total current
equal to the sum of the individual capacitance values
None of these
equal to the sum of the individual capacitive-reactance values
less than the capacitance value of the smallest capacitor

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