Electronic Principles
Which one of the following statements is true for the voltage in a parallel RL circuit?

The total voltages is less than the sum of the voltages across the resistance and inductance
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltage is equal to the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90

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

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

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Electronic Principles
For a pure capacitor:

ac current lags the voltage by 90 degree
ac current is converted to dc voltage
ac current leads the voltage by 90 degree
None of these
ac current and voltage are exactly in phase

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Electronic Principles
Which one of the following statements best applies to a series RLC circuit?

The voltage waveform for each component always has the same amplitude and phase as the applied voltage
The current waveform for each component always has the same amplitude and phase as the applied current
The sum of the current is always less than the applied current
All of these
None of these

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Electronic Principles
Which one of the following phrasers best describes flux density?

The force that maintains lines of force
The opposition to a build-up of magnetic fields
The rate of change of the number of lines of magnetic force
The concentration of lines of magnetic force
None of these

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