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That
property
of a
system
of
conductors
and
dielectric,
which
permits
the
storage
of
electricity
when
potential
difference
exists
between
the
conductors.
Its
value is
expressed
as the
ratio of
a
quantity
of
electricity
to a
potential
difference.
A
capacitance
value is
always
positive.
The
charge
which
must be
communicated
to the
body to
raise
its
potential
one
unit,
represented
by C=
Q/V,
where C
is the
capacitance,
Q the
quantity
of
charge,
and V
the
potential.
Capacitance
is a
measurement
of a
cable's
ability
to store
an
electrical
charge,
and is
expressed
in
picofarads
per foot
(pF/ft).
Capacitance
is
especially
important
in any
situation
where
large
amounts
of data
are
being
transmitted
thru the
cable.
The
higher
the
capacitance
of
cable,
the more
it
interferes
with
high
frequency
signals.
The
property
of a
device
to
oppose
changes
in
voltage
due to
energy
stored
in its
electrostatic
field.
Capacitor
A device
whose
impedance
increases
with
decreasing
frequency.
Also
known as
a "cap";
commonly
used in
passive
crossovers
as a
high
pass
device.
Can also
be used
to store
energy.
Crossover
See
Active
Crossover
&
Passive
Crossover
Conductor
A
material
that
allows
electrical
current
to flow
through
it
easily. |
