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

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

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

The total resistance of a parallel circuit is equal to the total voltage
The total resistance of a parallel circuit is always less than the value of the smallest resistance
None of these
The total resistance is equal to the sum of the individual resistances in a parallel circuit.
The total resistance in a parallel circuit is equal to the average value of the individual resistances

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