Temperature Coefficient
A temperature coefficient is said to be a relevant change of
a physical property which is associated with a change in temperature.the
temperature coefficient is defined by
Here α is a dimension
of an inverse temperature and also be expressed in Kelvin.If the temperature
doesn't varies too much with a temperature than the following formula is used
to determine the value of R with respect to temperature.
Here ΔT is the difference between T and To. Temperature
coefficients are specified for various applications which includes electric and
magnetic properties of materials.
Reversible Temperature Coefficient
Residual
magnetic flux density also changes its temperature and it has the important characteristics
of magnet property.The formula to find the reversible temperature coefficient of
residual magnetic flux is as follows
Here
ΔT
is the change in temperature, ΔBr is the change in magnetic flux
and Br is the residual magnetic flux.
Electrical Resistance
The temperature also depends
on the electrical resistances and also electronic resistors.The temperature
coefficient is defined as
Here po is the value of specific resistance at required temperature.The
formula to find the temperature coefficient of a conductor is as follows
Here S is the cross
sectional area of the conductor and α, β are the coefficients at
given temperature.
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