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

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

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Electronic Principles
A low-pass filter:

passes lower-frequency signals and reduces higher-frequency signals
reduces the level of all frequencies by a significant amount
has no effect on ac signals
passes higher-frequency signals and reduces lower-frequency signals
None of these

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