A metallic wire is stretched from original length of 2 m to 6 m. If the original cross-sectional area is 2 mm? and original resistance is 5 Q, determine the new resistance of the metallic 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: What is the resistance (in Ohms) of a wire made of a material with a resistivity of 4.6× 10-8Ω⋅ m if…

A: Given  The resistivity of the wire is Ꝭ = 4.6×10-8 Ω.m. The length of the wire is l = 2.9 m. The…

Q: a wire of uniform cross-section has a resistance of R. What would be the resistance of a similar…

A: We know the expression for resistance is  R=ρLA Resistance of wire 1 R1=ρLAR1=ρLπd22R1=4ρLπd2…

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 2-meter extension cord is made out of copper wires with a 6 mm diameter. How thick should the…

A: Here given a 2 m extension cord is made out of copper with a 6 mm diameter. We have to calculate the…

Q: The resistance of a copper wire and an aluminum wire are equal. What is the ratio of the diameters…

A: Given data:  Rcu = RAl Have the same length Required: The ratio of diameters of the copper to…

Q: A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 32°F, its…

A: Given Initial resistance R0 = 220 ohm Final resistance R = 214 ohm Initial temperature To = 32oF…

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: Two wires, A and B, are made from the same material. The length of A is twice the length of B, and…

A: The resistance is given  by the formula.R=ρlAWhere, l is length of the conductorA is cross section…

Q: A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10-8 Ω m. What will be the length of this…

A:

Q: A wire has a diameter of 1.0 mm and a length of 30 m, and is found to have a resistance of 1.2 Ω.…

A: The area of the wire is, A=πr2=πd24=3.141.0 mm10-3 m1 mm24=7.85×10-7 m2

Q: A potential difference of 3.00 µV is set up across a 2.00 cm length of a wire (with resistivity of…

A:

Q: !Suppose that you wish to fabricate a uniform wire out of 2.99 g of copper. If the wire is to have a…

A:

Q: what is the resistance of a 3 km long iron wire, given that its diameter is 1 cm

A: Given data The length of the iron wire is given as L = 3 km. The diameter of the wire is given as d…

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

A:

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

A: Given: The resistivity is ρ=3.2×10-8 Ωm. The length is L=10.6 m. The diameter is d=0.50 mm. The…

Q: How long is a tungsten wire if it has a diameter of 0.195 x 10-3 m and a resistance of 3.33 k2? The…

A:

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: The resistance of a copper wire is originally 16 Q. What is the resistance of the same copper wire…

A:

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: The wire segment shown below is made of copper with a length of 300.0 m, across sectional area of…

A:

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

A:

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

A:

Q: Calculate the resistance of an annealed copper wire of 710 m long and a diameter of 128 mils at 20 0…

A: The given length of the copper wire l = 710 m and the diameter of the wire is d = 128 mm  at 20oC…

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

A: Given- Resistivity ρ=3.2×10-8Ω.m Length L=49.1 m Diameter d=0.50 mm=0.50×10-3m Radius…

Q: A one-meter of annealed copper 2.5 cm in diameter is drawn until its resistance is100 times the…

A: Original length of wire (L) = 1 m Original diameter (d) = 2.5 cm Let the original resistance = R New…

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 piece of material is tested and, at 25oC, it has a resistance of 153Ω. The thermal coefficient of…

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

A:

Q: When a potential difference of 12 V is applied to a wire 7.2 m long and 0.32 mm in diameter the…

A:

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

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: 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: Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of…

A:

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: What is the resistivity of a wire of 1.0 mm diameter, 2.0 m length, and 50 m resistance?

A:

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

A:

Q: A conductor has a diameter of 3.0 mm. How many meters of this material is needed to have a…

A: Given data: Diameter (D) = 3.0 mm = 3.0×10-3 m Resistance (R) = 1 Ω Resistivity (ρ) = 1.68×10-8 Ω.m…

Q: Wire C and wire D are made from the same material of resistivity p- 2.0 x 10 am. The length and…

A: The formula for the resistance of a metallic wire is:

Q: A wire of diameter 0.550 mm and length 45.0 m has a measured resistance of 2.80 Ω. What is the…

A: Given diameter of wire = 0.550 mm length of wire = 45.0 m resistance of of = 2.80 Ω We have to find…

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

A:

Q: A wire has a diameter of 1.0 mm and a length of 30 m, and is found to have a resistance of 1.2 2.…

A: Given The diameter of the wire is d=1 mm=1×10-3 m. The length of the wire is l=30 m. The resistance…

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.