A lab technician is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a silver wire at a temperature of 62.0°C and notes that it produces a current of 1.50 A. If she then applies the same voltage to the same wire at −88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for silver is 3.80 ✕ 10−3 (°C)−1. (Assume that the reference temperature is 20°C.)

Q: Electric field through a copper wire is found to be 0.18 V/m. If the copper wire has 8.46x102…

A: Drift velocity is the average velocity at which electrons move through a conductor under the…

Q: An advanced lab student is studying the effect of temperature on the resistance of a current…

A: The solution is attached below. i= 3.404AExplanation:

Q: A length of aluminum wire has a resistance of 14.00 at 32.0°C. When the wire is warmed in an oven…

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Q: A 4.5 m length of copper wire at 25°C has a radius 0.30 mm. If a potential difference of 12.0V is…

A: Given  Length of wire L=4.5 m radius r=0.30 ×10-3 m Potential difference V=12 V Initial temperature…

Q: A conductor has a cross- sectional area of 2.3x106 m2 and the number of free electrons per unit…

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Q: An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.295 V/m imposed along…

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Q: A 500.0 kV power line is delivering 250.0 MW of power. It consists of a copper wire has a radius of…

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Q: A resistor is attached in a simple circuit (see Figure below) to an ideal battery that has AV = 10…

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Q: A spool of copper wire 290 m long and with a diameter of 0.480 mm is at 20.0°C. For copper, the…

A: Given value--- length = 290 m. diameter = 0.48 mm. initial temperature = 20 degree C.  resistivity…

Q: What is the resistance of a 21-cm-long column of blood in a 0.80-cm- diameter femoral artery? The…

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Q: A 0.68-mm-diameter copper wire carries a tiny current of 2.5 μA. The molar mass of copper is 63.5…

A: Given: diameter of copper = 0.68 mm carries a tiny current of I = 2.5 μA. molar mass of copper is…

Q: Wire C and wire D are made from different materials and have length Lc = Lp = 1.4 m. The resistivity…

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Q: Aluminum has a resistivity of 2.65 × 10-8 2 × m. What is the resistance of 15 m of aluminum wire…

A: We have given        Resistivity (Rho) = 2.65 × 10-8 ohm_meter And.             Length (l) = 15 m…

Q: A copper wire of radius a = 0.204 mm has an aluminum jacket of outer radius b = 0.296 mm. There is a…

A: Data Given ,  Inner Radius of the wire ( a ) = 0.204 mm = 0.204 × 10-3 m Outer Radius of wire ( b )…

Q: An aluminum wire has a length of 27.0 m and a resistance of 4.30 2 at 20.0°C. Assuming a circular…

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Q: Question 5 .... A current of 3.70 A is carried by a 250 m long copper wire of radius 1.25 mm. Assume…

A: current (i) = 3.70 A Length (L) = 250 m radius (r) = 1.25 mm electronic density (n) = 8.47×1028 m-3ρ…

Q: To what temperature must you raise a gold wire (c = 0.0034), originally at 20.0°C, to double its…

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Q: We have a copper conductor, length l = 1m and circular section of diameter d = 4mm a) Calculate the…

A: Part (a) Basic Details The resistance of the conductor depends on the resistivity, the length of the…

Q: A 1.00-mm-radius, cylindrical copper wire carries a current of 8.00 A. If each copper atom in the…

A: The correct answer is option (c) i.e. 0.187 mm/s

Q: ong wire is made of a metal with the same electron density as copper. The wire ed across the…

A: L=1.5mV=9v

Q: A wire is 0.86 m long and 1.1 mm2 in cross-sectional area. It carries a current of 4.0 A when a 1.6…

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Q: A spool of copper wire 290 m long and with a diameter of 0.360 mm is at 20.0°C. For copper, the…

A: The wire's resistivity is, ρ=1.7×10-8 Ω The wire's length is, L=290 m The radius of wire is, r=0.360…

Q: A copper wire has a length of 2 meters and a cross-sectional area of 3×10^{−6} square meters. The…

A: To determine the resistivity of the wire, we need to use Ohm's Law, which states that the potential…

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

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Q: 1.70 mm cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a…

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Q: A wire of Nichrome is 1.0 m long and 2.5 mm2 in cross-sectional area. It carries a current of 4.0 A.…

A: Given data: Potential difference (V) = 12 V Current (I) = 4 A Length of Nichrome wire (L) = 1.0 m…

Q: A nichrome toaster wire, initially at room temperature, carries 2.75 A immediately after it s turned…

A: Given: At room temperature Ti =20 ℃ current in the nichrome wire, Ii = 2.75 A When the temperature…

Q: What current flows through a 2.15 cm diameter rod of pure silicon that is 20.5 cm long, when 1000 V…

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Q: At 20°C, a 7.5 m long copper wire has a cross-sectional diameter of 1 mm. If 15 A of current flow…

A: temperature, T=20 o C length of copper wire, l=7.5 m cross-sectional area, A=1 mm= 1x (10-3 m)2 = 1…

Q: A length of aluminum wire is connected to a precision 10.00-V power supply, and a current of 0.4212…

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Q: The resistivity of gold is 2.44 x 10-82-m at a temperature of 20°C. A gold wire, 1.8 mm in diameter…

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Q: When a current flows in an aluminum wire of diameter 4.67 mm,4.67 mm, the drift speed of the…

A: Radius of the aluminium wire(r)=Diameter of the wire2=4.67×10-32=2.335×10-3mArea of the…

Q: The copper windings of a motor have a resistance of 46 Ω at 20oC when the motor is idle. After the…

A: Initial resistance of copper windings (r) = 46 ohm initial temperature of the copper windings (t) =…

Q: A copper wire of cross-sectional area 1.40 mm² has a current of 3.90 A flowing along its length.…

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Q: You are working at a company that manufactures electrical wire. Gold is the most ductile of all…

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Q: 1. a) Find the electrical resistance of a 0.5 cm long, 22-gauge silver wire, if the electrical…

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Q: Problem 1. A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41.O N at…

A: solution as

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: 13. A very long straight, cylindrical wire lying along the x axis has a diameter of 0.250 mm and is…

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Q: b) An aluminum wire 7.5m long is connected in parallel with a copper wire 6m long. When a current of…

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Q: A tungsten wire is used to determine the melting point of indium. The resistance of the tungsten…

A: Given  The resistance of the tungsten wire at (T0 = 20°C ) is R0 = 2.221. The increased resistance…

Q: A copper wire of radius a = 0.334 mm has an aluminum jacket of outer radius b = 0.465 mm. There is a…

A:

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.