A 20% increase in the resistance of a copper wire was noticed when its temperature was raised above room temperature. Find the final temperature of the wire if the temperature coefficient of resistivity for copper is 4.0×10^-3 /K. [Assume that room temperature=290K

Q: (25%) Problem 6: A copper wire has a resistance of 0.495 at 20.0°C, and an iron wire has a…

A: Let at temperature T  Riron = Rcu  .535[1+5×10^-3(T-20)] = .495 [1+3.9×10^-3(T-20)]…

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: A resistor made of nichrome wire is used in an application where its resistance cannot change more…

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Q: The resistance R of a copper wire at temperature T = 22°C is R = 13 2. Estimate the resistance at T…

A: Given data The initial resistance is, R1=13 Ω The initial temperature is T1=22oC The final…

Q: What is the resistance (in units of a) of a wire made of a material with a resistivity of 3.2 x 100.…

A: RESISTANCE

Q: A composite conductor 10 [m] long consists of an inner core of steel with radius 1.5 [cm] and an…

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Q: A current of 1.97 A flows through an annealed copper wire 2.25 m long and 1.47 mm in diameter. Find…

A: Current, I = 1.97 A Length, L = 2.25 m Diameter, d = 1.47 mm = 0.00147 m Conductivity, σ = 5.81×107…

Q: A certain conductor wire has a resistance of 25 Q at 25°C. If the resistance 6. increased to 96 Q at…

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Q: (a) A 33.9-m length of copper wire at 20.0°C has a radius of 0.27 mm. If a potential difference of…

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Q: Determine the length (in mm) of a gold conductor that has a resistance of 0.015 Ω and a…

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Q: that its temperature coefficient of resistivity is 0.001 per degree Celsius. Its resistance at 120…

A: Given info:- R1=2 ohm ∝=0.001 per℃ T2=120℃ T1=20℃ To determine:-resistance at temperature T2

Q: Determine the length (in mm) of a gold conductor that has a resistance of 0.019 Ω and a…

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Q: A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in…

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Q: When an electric heater is turned on, the Nichrome heating element is at 0 degrees C and draws a…

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Q: ine the resistance of a conductor 0.119m long, with a uniform diameter of 1.19 cm and having a…

A: Given Length of conductor, Lo=0.119 mDiameter of conductor, d=1.19 cmResistivity, ρ=0.319+10-4 L2 Ω…

Q: The temperature coefficient of a certain conducting material is 4.52 x 10-4 (°C)-1. (a) At what…

A: Thermal coefficient of temperature (alpha) = 4.52 x 10-4

Q: An iron wire is used to determine the melting point of material X. The resistance of the iron wire…

A: Given: T=30°C, R0=3.5Ω, RT'=5.5Ω, α=6.4×10-3/C° The resistance of the iron wire changes with…

Q: A wire is made from a material having a temperature coefficient of resistivity of 0.00125 (°C)". In…

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Q: (a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of…

A: Given Data The length of copper wire is:L=35.5 m The initial temperature is:To=20°C The heated…

Q: An engineering intern is studying the effect of temperature on the resistance of a current carrying…

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

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Q: Calculate the resistivity of a material of a wire 10 m long. 0.2 mm in diameter and having a…

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Q: Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10−3 (°C)−1.By what…

A: Given temperature coefficient of resistivity , α=3.1 x10−3 (°C)−1 Let   T1 =20.0°C        T2 = 79.48…

Q: (a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of…

A: length of copper wire = 35.5 m Initial temperature = 20o C radius (r) = 0.31 mm Potential difference…

Q: (a) A 34.9-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of…

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Q: A 50-ohm resistor is initially at 30 degrees Celsius. Find its resistance when the temperature…

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Q: A (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is…

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Q: Find the resistance of a hollow cylindrical pipe of length 1-0 m whose inner and outer radii are 10…

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Q: A thermometer made of Platinum has a resistance of 50 N at 20 C, what is the measured temperature…

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Q: A 35.1-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V…

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Q: A long cylindrical conductor is constructed whose coefficient of resistivity at a temperature of…

A: Given, , Resistivity,                                Temperature coefficient of resistance are .

Q: A platinum wire with resistance 1.0 N at 20 °C is immersed in liquid nitrogen at -195.9 °C. If the…

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Q: Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10-3 (°C)-1.By what…

A: Given data The temperature coefficient of resistivity of the wire is: α = 3.1 x 10-3 °C-1 The…

Q: The electrical resistance in ohms of a certain thermometer varies with temperature according to the…

A: R = R0  [1 + α (T – T0 )] . . . . . . . . . . . (1)Here, R0 and T0 are the initial resistance and…

Q: Determine the length (in mm) of a gold conductor that has a resistance of 0.014 Ω and a…

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Q: At 20.0 degrees celsius, copper has a resistivity of 1.68e-8 ohms. Find the resistance of a 3.5m…

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Q: The resistance of copper wire (with a = 0.00393/C° at 20°C is 119 0. At 60 °C, its resistance would…

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Q: A certain material has a resistance of 250 2 at 20°C. The material is then heated to 1500°C,…

A: We have  initial Resistance Ro = 250 ohm  Final resistance =  R   initial temperature To = 20oC…

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38.8 2 at 20.0°C. If…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.