Electronic Principles
The rms value of a sine waveform is:

the time required to complete one full cycle
equal to 1.41 times the peak amplitude
None of these
equal to 0.707 times the peak amplitude
the number of cycles completed in one second

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

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

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Electronic Principles
The dielectric constant of a material is a measure of:

how well the material concentrates electrostatic lines of force
the amount of voltage it can withstand before breaking down
None of these
the amount of opposition to the current flow
how well the material concentrates magnetic lines of force

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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
None of these
Capacitive reactance provides the only opposition to current flow
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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