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I have a power supply multimeter and a copper wire with cross sectional area A A 214103 m2 Length L 013 m and the resistivity of copper is p17 108 The goal is to find the resis
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Where r is resistance in ohms l is the length of the wire in meters a is the cross sectional area of the wire in square meters and is the electrical resistivity in ohmmeters electrical conductivity is the inverse of resistivity its the ability of a material to let current pass through it is denoted by the greek letter sigma and is measured in units of siemens s
Click hereto get an answer to your question a calculate the resistance of 1 km long copper wire of radius 1 mm resistivity of the copper is 172 x 1012 m
Question take a copper wire that is 536 m long and 0358 mm in diameter what happens to the resistivity of the copper wire if you change its length to 107 m and its diameter to 0716 mm without affecting the temperature of the wire the resistivity halves the resistivity doubles the resistivity quadruples the resistivity remains the same none of the above
The diameter of 0gauge copper wire is 8252 mm find the resistance of a 100km length of such wire used for power transmission 3 if the 0100mm diameter tungsten filament in a light bulb is to have a resistance of 0200 at 20 c how long should it be
A copper wire of resistivity 16 108 ohm meter has a cross sectional area of 20 104 cm2 calculate the length of this wire requires to make a 10 ohm 9649262
Take a length of the wire from the previous example from table 251 the resistivity of copper is the electric field strength inside the wire the potential difference along the length of the wire and the resistance of the wire are this is the simplest resistor circuit a wire attached to a voltage source the wire is the resistor
The cirris ch2 xhvc is a versatile system that provides voltages up to 1500 ac and 2120 dc along with higher voltages the ch2 xhvcs improved current capability will test higher capacitance cables even with ac test specifications
For example the resistivity of something like copper will be much lower than something like glass since copper is a conductor and glass is often used as an electrical insulator another way to increase the resistance of a wire is to increase its length
Resistance wire is used to control the amount of current in a circuit high resistivity is better since a shorter wire can then be used when the stability of the resistor is of primary importance the alloys temperature coefficient of resistivity and corrosion resistance are very important in material selection
The resistivity or specific resistance of a wire depends upon its view answer a hollow copper tube of 5 m length has got external diameter equal to 10 cm and its walls are 5 mm thick the specific resistance of copper is 1 7 1 0 8 m the resistance of the copper tube is approximately equal to
Apr 05 2019 a copper wire of resistivity 16 108 ohm meter has a cross sectional area of 20 104 cm2 calculate the length of this wire requires to make a 10 ohm 9649262