A 16.0-mm length of wire consists of 7.0 mm of copper followed by 9.0 mm of aluminum, both of diameter 1.4 mm. A voltage difference of 95 mV is placed across the composite wire. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m

Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

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Q: A potential difference of 10 V is found to produce a current of 0.40 A in a 3.4 m length of wire…

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Q: A copper wire of radius a = 0.161 mm has an aluminum jacket of outer radius b = 0.224 mm. There is a…

A: Data Given ,  Inner Radius of the wire ( a ) = 0.161 mm = 0.161 × 10-3 m Outer Radius of wire ( b )…

Q: A copper wire has a cross sectional area A1 = 10-6m² and has a density of charge carriers of 1029…

A: The resistance of a conductor is given by: R = ρLA where, ρ is the resistivity of the conductor, L…

Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance for a wire can be found from R=ρLA where ρ is the resistivity of material, L is length…

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: A 1.30 m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a…

A: diameter= 0.500 cm  potential difference = 15.0 V Room temp. T0=20 C

Q: A straight, cylindrical wire lying along the x axis has a length of 0.515 m and a diameter of 0.195…

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Q: A current-carrying gold wire has diameter 6.96 mm. The electric field in the wire is 0.58 V/m. What…

A: Remember that current density through wire is given by: J = sigma*E = I/A sigma = conductivity of…

Q: The resistivity of a 1.0 m long wire is 1.72 x 10-8pm and its cross sectional area is 2.0 X 10-6m2.…

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Q: A given copper wire has a resistance of 5.08 2 at 20.0°C while a tungsten wire of the same diameter…

A: The resistance of copper wire = 5.08 ohm  Resistance of Tungsten wire 4.71 ohm

Q: A copper wire has a circular cross section with a radius of 1.01 mm. HINT (a) If the wire carries a…

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Q: copper wire is r = 2.19 cm in radius and 2.6 m in length, has a resistivity of 1.72x10^-8 Ω m, and…

A: Given: The radius of the wire is 2.19 cm. The length of the wire is 2.6 m. The resistivity of the…

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

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Q: Consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.75…

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Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

A: Given, Length of copper wire = 50 m Diameter = 1.15 mm Resistance = 0.830 ohms at 20 degrees

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

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Q: What is the resistance of a 3.4-mm length of copper wire 1.3 mm in diameter? The resistivity of…

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Q: A conducting cable of length 23.5 m and radius 0.500 mm is connected to the battery providing…

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Q: A copper wire has a circular cross section with a radius of 1.56 mm. HINT (a) If the wire carries a…

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Q: A block of aluminum of volume 340 mm is used to make a wire 13,4 m long. What is the resistance (in…

A: Given: The volume of aluminum is 340 mm3. The length of the aluminum wire is 13.4 m. The resistivity…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: (a)  Using the expression for resistance, R=ρCuLAL=RρCuAL=0.913 Ω1.72×10-8 ΩmAA=L5.308×107 m-1

Q: As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with…

A: the resistivity of nichrome is 1.00  10-6 Ω · m density of nichrome is 8.31  103 kg/m3

Q: What is the resistance of (a) A 1.8-mm-long gold wire that is 0.10 mm in diameter? Express your…

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Q: What is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x…

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Q: As part of a class project you are given 0.900 g of Nichrome and asked to fabricate a wire with…

A: Mass of wire = 0.9 g Percentage of nichrome used = 95%Therefore, mass of nichrome used = 0.95×0.90…

Q: A metal has a resistivity of 1.26 x 10-8 0 m. What will the resistance of the following wires made…

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Q: 2. A metallic cable 50.0 m long and 10.0 cm in diameter carries a current of 10.0 A. The resistivity…

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Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A: Resistance is defined as the obstruction faced by an electric current while moving across a…

Q: Consider a thin aluminum wire with diameter d= 6 mm The resistivity of aluminum is 2.65x10-8 Q.m.…

A: Recall R=ρL/A

Q: copper transmission cable 120 km long and 10.5 cm in diameter carries a current of 125 A.…

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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: 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 data: Temperature is, T=20∘C. Resistance of copper at 20∘ is, R1=5.20 Ω. Resistance of…

Q: The student runs an experiment on a cylindrical wire of a length l of 2 centimeters and the cross-…

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Q: A spool of copper wire 320 m long and with a diameter of 0.360 mm is at 20.0°C. For copper, the…

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Q: Calculate the drift velocity of the electrons  in a 12-gauge copper wire which has a diameter of 2.…

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Q: Q1 / A piece of metal is its length 5m and its cross-sectional area 0.5 mm^2 and the specific…

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Q: 00-gauge copper wire has a diameter of 9.266 mm and a resistivity of 1.72 × 10-8 Ω⋅m. Calculate…

A: Given data:  Diameter (D) = 9.266 mm Resistivity (ρ) = 1.72 × 10-8 Ω.m Length (L) = 1 km Current (I)…

Q: A spool of copper wire 290 m long and with a diameter of 0.440 mm is at 20.0°C. For copper, the…

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Q: What is the current in the element of an electric clothes dryer with a resistance of 7.4 Ω when it…

A: (given)              Resistance (R)= 7.4 Ω Operating voltage (V)= 240 V                      Voltage…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: Given : Mass of copper given = 0.9 g Copper used =95% =95100×0.9 = 0.855 g  =0.855×10-3 kg…

Q: gold wire carries 24.5 A of current with a drift velocity of 2.5 × 10-3 m/s. Assume there is one…

A: Given Current I = 24.5 A Drift velocity vd = 2.5 × 10-3 m/s Density =1.93 × 104 kg/m3  Mmolecular…

Q: You have a 100 meter long hollow square copper wire that has a side length of 5mm. The diameter of…

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Q: A length of aluminum wire is connected to a precision 10.00-VV power supply, and a current of 0.4132…

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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.