Electronic Principles
Voltage is

None of these
The flow of charged particles through a material
Trie force that causes electrons to flow
The smallest electrically charged particle
The number of free electrons in an atom

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

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

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Electronic Principles
The peak value of a sine waveform is:

the amplitude at 1.41 times the maximum value
the maximum positive or negative value
the amplitude at 70.7% of the maximum value
the amplitude at 90% of the maximum value
None of these

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