A wire of uniform cross-section has a resistance of R. What would be the resistance of a similar wire, made of the same material, but twice as long and of twice the diameter?
Q: A copper wire of length L has a resistance R. The wire is passed through a small metal ring,…
A: Given data: The length of wire is L. The resistance is R.
Q: A tungsten wire has a resistance of 2 N at 20 °C, and a gold wire has a resistance of 4.2 N at the…
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Q: Suppose you wish to fabricate a uniform wire from 1.85 g of copper. The wire is to have a resistance…
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Q: The resistance of a thin silver wire is 1.0 32 at 0°C. The wire is placed in a liquid bath and its…
A: Resistance is a measure of the opposition to current flow in an electrical circuit. Here,we…
Q: The wires of our appliances are insulated with a material mixed with rubber, which has a very high…
A: The resistance of the given rubber is R=ρlA=ρlπro2-πri2=ρlπro2-ri2
Q: You've made the finals of the Science Olympics! As one of your tasks, you're given 1.5 g of copper…
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Q: A conducting wire with a resistance of 20 Ω is melted and with that material another wire four times…
A: Given in question - Initial resistance(R) = 20 Ω New length (L') =…
Q: A given copper wire has a resistance of 5.20 2 at 20.0°C while a tungsten wire of the same diameter…
A: Given: The resistance of copper wire is 5.20 ohms. The temperature is 20.0 degrees Celcius. The…
Q: Assuming that you would want to make a uniform wire out of 5 grams of copper. If this wire is to…
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Q: The resistance of a 10 meters length of wire is 1.2 kΩ. Determine (a) the resistance of a 5 meters…
A: length = l1 = 10 m resistance = R1= 1.2 kΩ
Q: A copper wire has a resistance of 0.500 Ω at 20.0 °C, and an iron wire has a resistance of 0.525 Ω…
A: The resistance of the copper wire at 20.0 °C, The resistance of the iron wire at 20.0 °C,
Q: The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it…
A: Given αgold=0.0034 (C0)-1 αtungsten=0.0045 (C0)-1∆RRgold=7.9%
Q: Suppose you wish to fabricate a uniform wire out of 1.45 g of copper. If the wire is to have a…
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Q: An electrician plans to cut a copper wire with more than 10Ω resistance (p=1.724*10-8m). The radius…
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Q: A silver wire has a resistance of 2.1 N at 27.5 °C, and a resistance of 2.7 N at 100 °C Determine…
A: Given data-Temperature, T1=27.50CResistance of the silver wire at T1, R1=2.1 ohmTemperature,…
Q: A copper wire of length 2.5 m and cross-sectional area 2.4 x 107 m² has a resistivity of 1.7 x 10*8…
A: We know that,Resistance, R=ρLAwhere,ρ=resistivity L=length of wireA=cross−section areaGiven…
Q: A wire with a resistance of 7.6 S is drawn out through a die so that its new length is 3 times its…
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Q: Suppose you wish to fabricate a uniform wire from 1.20 g of copper. The wire is to have a resistance…
A: The density of an object is its mass per unit volume .It can be written as…
Q: A silver wire has a resistance of 2.1 Q at 27.5 °C, and a resistance of 2.7 Q at 100 °C. Determine…
A: Given data: T1=27.5°CR1=2.1Ω resistance of silver wire at T1T2=100°CR2=2.7Ωresistance of silver wire…
Q: What must be the length of this wire? What must be the diameter of this wire?
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Q: Suppose you wish to fabricate a uniform wire from 1.10 g of copper. The wire is to have a resistance…
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Q: The figure shows cross sections through three long conductors of the same length and material, with…
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Q: A wire with a resistance of 8.6 Ω is drawn out through a die so that its new length is 3 times its…
A: Relation between resistance and resistivity is,
Q: 10-gauge copper wire (diameter = 2.588 mm, ρ = 1.7 × 10–8 Ω · m) has a total resistance of 0.32 Ω.…
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Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.35…
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Q: When aluminum is used for electrical wire, it is common to use a large-diameter wire than would be…
A: The resistivity of aluminum ρA=2.65×10-8Ωm The resistivity of copper ρC=1.68×10-8Ωm The cross…
Q: Wire 1 has a resistance of 0.3 ohms. Wire 2 is made of the same material as wire but is three times…
A: Given information:Resistance of the wire 1 = 0.3 ohmLength of wire 1 be “l”The diameter of wire 1 be…
Q: Suppose you wish to fabricate a uniform wire from 1.20 g of copper. The wire is to have a resistance…
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Q: A metal wire of resistance R is cut into eight equal pieces that are then placed together side by…
A: The initial resistance of the wire is given as R. Now there can be two ways to solve this question.…
Q: volume of metal a new wire is made that is three times longer than t original wire. What is the…
A: R= 21 Ω let the initial length and area of cross-section of wire be=> l and A let new wire's…
Q: At 25°C, the resistance of a segment of gold wire is 59 N. When the wire is placed in a liquid bath,…
A: Given, At (T1)= 25°C resistance of wire is (R1)= 59 ohm. When wire placed in liquid bath( having…
Q: A 2 m long gauge 14 copper wire (diameter 1.624 mm, resistivity 1.72 × 10-8 Ωm) replaces a similar 2…
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Q: A copper wire has a resistance of 0.51 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at…
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- A wire of radius R and Length L has a resitance of 14. What is the resistance of a wire made from the same material that has twice the radius and five times the lengthThe resistance of a rod with a length of 3.0cm and diameter of 1.0 cm is 56.0Ω. If this rod is stretched to form a wire with a diameter of 0.01cm, what is its resistance ? Assume that in the process of stretching the rod, its volume did not charge.Pure copper has a resistivity of 1.68 × 10−8 Ωm. Some accurate cubes of copper are prepared,and electrical measurements are made, for which current is passed across a pair of oppositefaces.a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Explain your answer.b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resistance between opposite faces of the stack? Calculate the resistance of each stack.
- Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii? Note: You need to use the concept of resistivity and find the resistivity of these two materials to solve this problem. You can find a table of resistivity in your textbook or use the internet.Suppose you wish to fabricate a uniform wire from 2.40 g of copper. The wire is to have a resistance of R = 0.700 Ω and all the copper is to be used. (a) What must be the length of this wire? m(b) What must be the diameter of this wire?a piece of copper wire with a radius of 6 cm has a resistance of 50 ohm. the wire is cylindrical. If we want to decrease the resistance to 10 ohms by only changing the radius while keeping the rest of the parameters the same. What will the new radius be?
- The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (Cº)-1. The resistance of a gold wire increases by 7.0% due to an increase in temperature. For the same increase in temperature, what is the percentage increase in the resistance of a tungsten wire?A copper wire has a resistance of 50 ohms. What will be the strength of another copper wire whose cross section is double and length three times as long?What is the resulting resistance of a 1000 m copper wire having a diameter of 11.7 mm if its stretch down to 5 mm? The wire has an initial resistance of 50 m ohms.
- As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with uniform cross-section. You use up 95% of the copper and make a wire with a resistance of 0.723 Ω. The resistivity of copper is 1.72 10-8 Ω · m and its density is 8.92 103 kg/m3. (a) What length of wire do you end up with? (m)(b) What is the diameter of the wire? (mm)A silver wire has a resistance of 2.1 2 at 27.5 °C, and a resistance of 2.7 2 at 100 °C. Determine the temperature coefficient of resistivity of silver.