resistance per unit length of the wire experiment
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Resistance per unit length is “the ratio of specific resistance or resistivity to the area of cross- section of a given conducting material”.
The resistance is an effect of resistor which restricts the flow of electrons in a conducting material, that is, resistor restricts the flow of current in a conductor. The resistance depends on the dimensions of a conductor and temperature.
At a given temperature, resistance is directly proportional to the length of the given conductor and it is inversely proportional to the area of cross-section of a given conductor.
That is,

From equations (1) and (2).

Here, ρ is specific resistance or resistivity in Ohm–meters, l is length of the given conductor in meters, and A is area of cross-section in meter2.
From equation (3)

Therefore, Resistance per unit length is the ratio of specific resistance or resistivity to the area of cross-section of given conductor in Ohm per meter. This parameter is mostly calculated in power system analysis, transmission, and distribution systems. This parameter is also used in the calculations of power system operation and control, and stability calculations.
The resistance is an effect of resistor which restricts the flow of electrons in a conducting material, that is, resistor restricts the flow of current in a conductor. The resistance depends on the dimensions of a conductor and temperature.
At a given temperature, resistance is directly proportional to the length of the given conductor and it is inversely proportional to the area of cross-section of a given conductor.
That is,

From equations (1) and (2).

Here, ρ is specific resistance or resistivity in Ohm–meters, l is length of the given conductor in meters, and A is area of cross-section in meter2.
From equation (3)

Therefore, Resistance per unit length is the ratio of specific resistance or resistivity to the area of cross-section of given conductor in Ohm per meter. This parameter is mostly calculated in power system analysis, transmission, and distribution systems. This parameter is also used in the calculations of power system operation and control, and stability calculations.
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