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 the room temperature = 290 K]

Q: A copper wire has a resistance of 0.5 Ω at 20 °C, and an iron wire has a resistance of 0.525 Ω at…

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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: The resistance of a copper wire at 7⁰C is 50 mΩ. If the temperature coefficient of copper at 0⁰C is…

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Q: Two wires have the same cross-sectional area. One is tungsten, which has a temperature coefficient…

A: The coefficient of resistivity of tungsten αt=0.0045 °C-1. The coefficient of resistivity of carbon…

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: Calculate the resistivity of a wire 16 m long, if its cross–sectional area is 1.6 mm2 and its…

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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 silver wire has a resistance of 2.1 ohm at 27.5 °C, and a resistance of 2.7 ohm at 100 °C.…

A: Given that - Initial temperature Final temperature Resistance of the silver wire at initial…

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) 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: (a) Find the current through the resistor in the figure above. (Take R = 4 Ω.) (b) If the resistor…

A: Given Data  Resistance R = 4Ω Voltage Vba = 12V Increased Temperature Tf =1480C  The Coefficient of…

Q: A 640-W heating coil designed to operate from 110 V is made of Nichrome wire 0.700 mm in diameter.…

A: a. the resistance of the coil can be calculated as follows,

Q: A heating element has a temperature coefficient = 0.005 °C-1 is operated at a constant voltage Vo At…

A: Given that temperature coefficient of heating element and initial and final value of current and…

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: A resistance oven employing nichrome wire is to be operated from 230 V single phase supply and is to…

A: Let P be defined as the power output, V be defined as the supply voltage. Let T1 and T2 be defined…

Q: The LED requires a minimum current of 20.0 mA to light. Assuming that your battery is operating at…

A: Given Voltage of battery is V=9.00 V Minimum current is I=20.0×10-3 A

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: The resistance R of a copper wire at temperature T = 30°C is R = 13 Q. Estimate the resistance at T…

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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: (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 400-W heating coil designed to operate from 110 V is made of Nichrome wire 0.440 mm in diameter.…

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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: Calculate the drift velocity of electrons when a current of 1.5 A flows in a copper wire of…

A: Given data:  Current (I) = 1.5 A Cross-sectional area (A) = 5.0 mm2 = 5.0×10-6 m2 Electron density…

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: A 560-W heating coil designed to operate from 110 V is made of Nichrome wire 0.640 mm in diameter.…

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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 current of 3.70 A is carried by a 250 m long copper wire of radius 1.25 mm. Assume an electronic…

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Q: Determine the temperature at which the resistance of an aluminum wire will be twice its value at 20…

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Q: A 500-W heating coil designed to operate from 110 V is made of Nichrome wire 0.500 mm in diameter.…

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