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A negative temperature coefficient indicates that the dependent variable, the variable of interest increases when the temperature decreases and conversely. This could, for example, be the density of an object (excluding water at 0 - 4 deg C). As the temperature goes up the volume increases so the density decreases.

Q: What is negative temperature cofficient?

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5x 5 is the coefficient and x is the variable.

No, it is a fundamental mechanical property of the material

negative numbers> temperature.

In the equation 2x = 6 the coefficent of x is 2

no because the only way degrees can be negative is in temperature.

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Temperature coefficient of the PN intersection voltage to balance the temperature coefficient of the warm voltage.

Well, there's typically two types of materials-Those with positive temperature coefficient and those with negative temperature coefficient. Positive temperature coefficient are those whose resistance increases as temperature increases. Negative temperature cofficient are those whose resistance decrease when the temperature increase. There are however some alloys such as Manganin& Constantan whose resistance is not affected by temperature

why correlation cofficient always lies between 1 and -1

That 5 is the cofficient of the term. The "n" is the variable!

No, according to the laws of thermodynamics, it is not possible to achieve a negative Kelvin temperature because it would imply an object has negative energy. The concept of negative temperature in the Kelvin scale does not exist.

negative 'temperature coefficient of reactivity'

5x 5 is the coefficient and x is the variable.

In metals, the Hall effect occurs due to the motion of free electrons, resulting in a positive Hall voltage. In semiconductors, the Hall effect is primarily generated by the movement of both free and bound charge carriers, leading to a negative or positive Hall voltage depending on the type of semiconductor (n-type or p-type, respectively). Semiconductors exhibit a more complex and tunable Hall effect compared to metals.

cofficient of window 1mx1m

No, it is a fundamental mechanical property of the material

-5 is lower

negative numbers> temperature.