The Nichrome unit (ρ = 660) in a toaster has a resistance of 24 ohms. What is the resistance of a copper conductor of equal cross-sectional area, but 10 times as long as the Nichrome wire?

Q: A copper wire of 10 Q and length L. At what point along its length must the wire be cut out so that…

A: The resistance of the wire is directly proportional to the length of the conductor.

Q: A coaxial cable consists of an inner conductor with radius ri = 0.25 cm and an outer radius of ro =…

A:

Q: What is the resistance of a 7.4-mm length of copper wire 1.7 mm in diameter? The resistivity of…

A: Write the given information about the wire,  l=7.4 mm=7.4×10-3 md=1.7 mm=1.7×10-3 mρ=1.68×10-8 Ω·m

Q: A copper transmission line is to be replaced by one of aluminum having the same total  resistance.…

A: In the given question, We have to determine the cross sectional area of the new aluminum wire.

Q: What is the resistance (in units of N) of a wire made of a material with a resistivity of 3.2 × 10-8…

A: Resistance is an electrical component that will try to stop the flow of current in a circuit. The…

Q: A certain lightbulb has a tungsten filament with a resistance of 21.7 2 when at 20.0°C and 144 2…

A:

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

A: The resistance Rof a wire of length l, cross secetion area A, and resistivity ρ,  is given by,R=ρlA

Q: The resistance of a wire is ohm. (Round your answer to the nearest ten-thousandth.)

A: Here length of the wire  is constant and and material of wire is same  therefore resistivity of wire…

Q: A copper transmission line is to be replaced by one of aluminum having the same total resistance. If…

A: Cross sectional area , Ac = 500 MCM To find = cross sectional area of aluminum wire

Q: What is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x…

A: Resistance is the measure of opposition to the current flow (or degree of hindrance ) in an electric…

Q: What is the radius of a 235.00m length of gold wire whose resistance is 0.32 Ko?

A: Resistance is given as R= ρl/A ,where ρ is the resistivity, l is the length and A is the area .…

Q: The Nichrome unit (p=660) in a toaster has a resistance of 24 ohms. What is the resistance of a…

A: resistance of nichrome unit (R) = 24 ohm Let the cross sectional area of nichrome unit = A Let the…

Q: A metallic wire is stretched from original length of 2 m to 6 m. If the original cross-sectional…

A: When a metallic wire is stretched, its length increases, cross sectional area decreases and volume…

Q: A silver wire has a length of 33.0 m and a resistance of 2.60 2 at 20.0°C. Assuming a circular…

A:

Q: What is the resistivity of a wire if it is subjected to a 2.50✕102 V/m electric field, and has a…

A: Given: E=2.50*102 V/mj=4.03*10-13 A/m2

Q: A conducting cable of length 23.5 m and radius 0.500 mm is connected to the battery providing…

A:

Q: resistance of a 25 cm

A:

Q: A wire is made out of aluminum with a cross-sectional area of 5.75×10−4 m2 and a length of 40 km.…

A: The resistance of the aluminium wire is

Q: ISuppose that you wish to fabricate a uniform wire out of 4.56 g of copper. If the wire is to have a…

A:

Q: A metallic wire is stretched from original length of 2 m to 6 m. If the original cross-sectional…

A: The resistance of the wire is given by,

Q: A metallic wire is stretched from original length of 3 m to 6 m. If the original cross-sectional…

A: As the volume is constant,

Q: A metallic conductor has a resistivity of 18 ´ 10-6 W×m. What is the resistance of a piece that is…

A: Given: ρ=18×106 Ωml = 30 mA = 3mm2 = 3×10-6 m2   Solution: Consider the expression for resistance: R…

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A: Resistance is the electrical component that provides opposition to the flow of electrical current in…

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.0 Q at 20.0°C. If…

A: Given, length of wire=3m cross-sectional area=0.450mm^2 Resistance Ro=40 ohm at 20 c Resistance…

Q: A coil of copper wire whose resistivity is 10.37 ohm-CM/ft has a length of 600 ft. What is the…

A:

Q: If a copper wire is stretched to make it 0.1% longer, what is the percentage change in its…

A: Given. A copper wire is stretched to make it 0.1% longer. We can assume that the volume of the…

Q: A coil of wire has a resistance of 36.2Ω at 26 °C and 61.7Ω at 67 °C. What is the temperature…

A:

Q: A 70 Coulomb charge is flowing to a copper wire whose length is 2500 m and has a cross sectional…

A:

Q: If a current of 5A flows through a conductor with a resistance of 7 ohms for 3 minutes, how many…

A:

Q: Suppose you wish to fabricate a uniform wire from a mass m of a metal with density ρm and…

A:

Q: A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm…

A:

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

A:

Q: Suppose you're using a copper wire that has a radius of 0.5 mm, is 3.8 m long, and has a resistivity…

A:

Q: Find the ratio of the resistances of a copper wire to an aluminum wire if the length and diameter of…

A: Rco=ρcoLcoπdco2/4=4ρcoLcoπdco2   Ral=4ρalLalπdal2=4ρal2Lcoπ2dco2=2ρalLcoπdco2

Q: What is the resistance of the copper bus-bar as used in the power distribution panel of a high-rise…

A:

Q: A copper wire of 10 2 and length L. At what point along its length must the wire be cut out so that…

A: Since, resistivity is property of the metal, it would be the same for each part of the wire.…

Q: A gold wire has a length of 23.0 m and a resistance of 4.70 Ω at 20.0°C. Assuming a circular…

A:

Q: A copper wire has a length of 34.0 m and a resistance of 3.60 2 at 20.0°C. Assuming a circular…

A: Length of wire (L) = 34 m Resistance (R) = 3.60 ohm Temperature (T) = 20oC Resistivity of copper =…

Q: How long Lis a tungsten wire if it has a diameter of 0.173 x 10-3 m and a resistance of 2.77 k2? The…

A: Given Data:- The diameter of the tungsten wire is d = 0.173 x 10-3 m. The resistance of the…

Q: The resistivity of a silver wire with a radius of 5.04 x 10-4 m is 1.59 x 10-8 2 · m. If the length…

A:

Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: The resistance of a copper wire at 20 deg. C is 30 ohms. If the temperature coefficient of copper at…

A:

Q: A wire of radius R and length L has a resistance of 14 Q. What is the resistance of a wire made from…

A:

Q: What is the resistance of a copper rod with resistivity of 1.78 x 10-80m, diameter of 10mm, and a…

A: Answer: Given data, Resistivity of copper (p)=1.78×10-8 ohm- m Diameter of rod(d)=10 mm=10×10-3 m…

Q: How much should the cross-sectional area of a wire copper with a length of 200 m to give it a…

A: The length of the first wire is l1=200 m The cross-sectional area of the first wire is A1 The…

Q: What is the resistance of a copper bus bar 9.15 meter long and 7.62 cm by 1.27 cm in cross section?…

A: Given data: Length (L) = 9.15 m Cross section area (A) = 7.62 cm × 1.27 cm Specific resistance (ρ) =…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.