Electronic Principles
A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value?

90 Ohm - 101 ohm
99 Ohm - 102 ohm
None of these
98 Ohm - 100.1 ohm
90 Ohm - 110 ohm

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Electronic Principles
The south pole of a magnet is the one:

that would be repelled by the north pole of another magnet
that would be attracted to the earth's south magnetic pole
that has its molecules arranged in a random pattern
None of these
that would be attracted to the earths north magnetic pole

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Electronic Principles
What is the difference between a conductor and an insulator?

An insulator allows current to flow much easier than a conductor does
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
A conductor allows current to flow much easier than an insulator does
The difference between conductors and insulators depends on how they are used
None of these

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

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