Keyword Analysis & Research: temperature coefficient of resistance formula

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Frequently Asked Questions

What is the formula in calculating EMF?

Electromotive force, or EMF, is calculated using the formula e = E / Q, where e is the EMF, E is the energy in Joules and Q is the charge. The EMF measures the potential difference between the terminals of a cell when the circuit is switched off.

What does temperature coefficient of resistance depend on?

The temperature coefficient of resistivity is a property of the specific metal or other material. Resistivity and Conductivity The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire is made.

What is the equation for thermal resistance?

Thermal resistance is the temperature difference, at steady state, between two defined surfaces of a material or construction that induces a unit heat flow rate through a unit area, K⋅m2/W. According to this definition and Equation 1, Equation 2, therefore, can be obtained.

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