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Assuming copper conductor at 20 degrees celcius, you can use a chart to determine the resistance of a length of conductor. You must know it's size (AWG, for American wire gauge) and the look up the resistance per 1000 feet from any table. For a specific length of conductor, you just multiply the table's value by the proportion of 1000 feet that's actually the lenght of the conductor: table's resistance value x length in feet/1000 feet.
For other temperatures or materials (i.e., aluminum), you must use a different formula: Rc = (K x L)/cmil where Rc = conductor resistance, K = "K factor" (see below), L = length of conductor and cmil is the cross sectional area of the conductor in circular mils (see the same chart referred to above). The K factor for different materials is
Copper: 10.8@25OC, 11.8@50OC and 12.9@75OC
Aluminum: 17.0@25OC, 19.0@50OC, 21.2@75OC
The K factor is the resistance of one circular mil-foot (cmil-foot) of the material. A mil is 0.001" and a circular mil is a circle 1 mil in diameter. A circular mil-foot is a length of the material 1 circular mil in cross-sectional area and 1 foot long. The cmil value of a given wire gauge is the cross-sectional area in circular mils.
What else can I help you with?
What factors determine the size of a current?
The size of a current is determined by the voltage applied, the resistance of the circuit, and Ohm's Law (current = voltage / resistance). The type of conductor material used, the temperature, and the cross-sectional area of the conductor also affect the size of a current.
What factors effect the resistance of a conductor?
Factors affecting the resistance of a conductor include the material from which it is made, its length, its cross-sectional area, and its temperature.
What happens to the resistance of a conductor when the length of the conductor is reduced to half?
If the length of the conductor is halved, the resistance of the conductor also decreases by half. This is because resistance is directly proportional to the length of the conductor. Shortening the length leads to fewer collisions between electrons and reduces the overall resistance.
Does every conductor heat up when electric current is passed through it?
Yes, every conductor will heat up to some extent when electric current flows through it due to the resistance of the material. The amount of heat produced is determined by the material's resistance to the flow of electricity.
Is resistance is directly proportional to charge?
No, resistance is not directly proportional to charge. Resistance is determined by the material, length, and cross-sectional area of a conductor, while charge is a property of matter. The resistance will affect the flow of charge in a circuit, but it is not directly proportional to the charge itself.
If A conductor has a resistance of 0.8 ohms what will happen to its resistance if the temperature is decreased?
The resistance of a conductor is directly proportional to the resistivity of the conductor. since the resistivity of a conductor is decreases with decrease in temperature hence the resistance.
What affects the resistance of an electric conductor?
The material from which the conductor is made, the length of the conductor, the diameter of the conductor and the temperature of the conductor are all things that impact its resistance.
Will increasing the conductor thickness increase resistance?
No. A thicker conductor will lower resistance.
What factors determine the size of a current?
The size of a current is determined by the voltage applied, the resistance of the circuit, and Ohm's Law (current = voltage / resistance). The type of conductor material used, the temperature, and the cross-sectional area of the conductor also affect the size of a current.
What factors effect the resistance of a conductor?
Factors affecting the resistance of a conductor include the material from which it is made, its length, its cross-sectional area, and its temperature.
What happens to the resistance as the conductor is measured?
The longer the conductor the greater the end to end resistance.
What happens to the resistance of a conductor when the length of the conductor is reduced to half?
If the length of the conductor is halved, the resistance of the conductor also decreases by half. This is because resistance is directly proportional to the length of the conductor. Shortening the length leads to fewer collisions between electrons and reduces the overall resistance.
Does every conductor heat up when electric current is passed through it?
Yes, every conductor will heat up to some extent when electric current flows through it due to the resistance of the material. The amount of heat produced is determined by the material's resistance to the flow of electricity.
What is the difference between conductor resistance and insulation resistance?
The resistance of a conductor is relatively low while an insulator should have very high resistance. The former is used to transmit electricity and the latter is designed to inhibit flow of electricity.
Does a conductor have resistance?
No
Is resistance is directly proportional to charge?
No, resistance is not directly proportional to charge. Resistance is determined by the material, length, and cross-sectional area of a conductor, while charge is a property of matter. The resistance will affect the flow of charge in a circuit, but it is not directly proportional to the charge itself.
What happens to the resistance of the conductor if the conductors become longer but the diameter stays the same?
If the length of the conductor increases while the diameter remains constant, the resistance of the conductor will increase. Resistance is directly proportional to the length of the conductor, so a longer conductor will have higher resistance. The diameter, however, does not directly affect resistance as long as it remains constant.
