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

the amount of voltage it can withstand before breaking down
how well the material concentrates electrostatic lines of force
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
Voltage is

The smallest electrically charged particle
The flow of charged particles through a material
None of these
The number of free electrons in an atom
Trie force that causes electrons to flow

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

None of these
The force of attraction between the poles of a permanent and temporary magnetic field
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The amount of magnetic flux that is not confined to the core material of an electromagnet
The circular magnetic field that surrounds a conductor carrying a current

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