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Magnetic Field.
The region within which a body or current experiences
magnetic forces.
Magnetic Flux. The rate of flow of magnetic
energy across or through a surface (real or imaginary).
Magnetic Noise. Caused by change in current
level, e.g., AC powerline (creates magnetic field around
that cable) this magnetic field causes the magnetic noise.
MCM. One thousand circular mils.
Megohm. One million ohms.
Member. A group of insulated wires to
be cabled with other stranded groups into multiple-membered
cable.
Mho. The unit of conductivity. The reciprocal
of an ohm.
Mhz. Megahertz (one million cycles per
second). Formerly mc.
Microphonics. Noise in a system caused
by mechanical vibration of components within the system.
Microwave. A short (usually less than
30 cm.) electrical wave.
Mil. A unit used in measured diameter
of a wire or thickness of insulation over a conductor.
One one-thousandth of an inch. (.001").
Mis-Match. A termination having a different
impedance than that for which a circuit or cable is designed.
Modulus of Elasticity. The ration of
stress to strain in an elastic material.
Moisture Absorption. The amount of moisture,
in percentage, that a material will absorb under specified
conditions.
Moisture Resistance. The ability of a
material to resist absorbing moisture from the air or
when immersed in water.
Monomer. The basic chemical unit used
in building a polymer.
Multiconductor. More than one conductor
within a single cable.
Mutual Capacitance. Capacitance between
two conductors when all other conductors including ground
are connected together and then regarded as an ignored
ground.
Mutual Inductance. The ratio of voltage
induced in one conductor to the time rate of current change
in the separate conductor causing this induction.
Mylar. DuPont trademark for a polyester
material used in the form of a tape.
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