Electronic Principles
What is a negative ion?

An atom that contains more electrons than protons
An atom that contains more electrons than neutrons
An atom that contains more protons than electrons
An atom that contains more protons than neutrons
None of these

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

The concentration of lines of magnetic force
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

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Electronic Principles
Which one of the following statements applies to common auto batteries?

Auto batteries are primary dry-cell batteries
Auto batteries are primary wet-cell batteries
Auto batteries are secondary dry-cell batteries
Auto batteries are secondary wet-cell batteries
None of these

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

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

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