c.
Air
17.
A ceramic capacitor contains a ceramic dielectric.
d.
Glass
e.
Glycerin
f.
Ceramic
An electrolytic capacitor usually contains an aluminum oxide film as the dielectric.
Electrolytic capacitors must not be used with AC voltages. They are designed for
use with DC voltages only and must always be connected in accordance with the
polarity markings.
Common capacitor dielectric materials are:
a. Glycerin
d.
b. Ceramic
e.
c.
f.
c.
Air
18.
Write the definition for the term "dielectric" as applied to capacitors.
d.
Glass
e.
Mica
f.
Paper
The
insulating 19.
The measure of the ability of an insulating material to support an electrostatic field,
materials
which
as compared to air, is called the dielectric constant.
separates the plates.
The symbol for dielectric constant is k.
The small letter k is the symbol for
1-6
IT0351
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