Electronic Principles
Which one of the following kinds of materials has the lowest permeability?

A feiTomagnetic material
All of these
A diamagnetic material
None of these
A paramagnetic material

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

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

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

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

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