A coaxial cable of consists of two concentric cylindrical conductors. The region between the conductors is completely filled with polyethylene plastic. The radius of the inner conductor is 0.50 cm, the radius of the outer conductor is 1.75 cm, and the length of the cable is 15 cm. The resistivity of the plastic is 1013 Ω • m. Calculate the resistance of the plastic if the electric field is applied across the ends of the conductor.

Q: Resistance depends on the size and shape of a conductor. We expect a long wire to have higher…

A: Given data:  Resistivity (ρ) = 12.08×10-8 Ω.m Length (L) = 14.22 mm = 14.22×10-3 m Diameter (d) =…

Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.15…

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Q: A certain metal wire has a cross-sectional area of 1.0 cm² and a resistivity of 1.7 x 10-8. m. What…

A: Given data:   Area (A) = 1.0 cm2 = 1.0×10-4 m2 Resistivity (ρ) = 1.7×10-8 Ω.m Resistance (R) = 1.0 Ω…

Q: A long, thin cylindrical conductor is made of copper. Its resistance is 77.5 Ω, and its mass is…

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Q: Nerve impulses are carried along axons, the elongated fibers that transmit neural signals. We can…

A: Given Diameter  = 10 μm Specific resistance ρ = 0.5 ohm. meter Length l = 7 mm To Find out…

Q: The density of mobile electrons in copper metal is 8.4 x 1028 m, Suppose that / 9.0 x 101…

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Q: Consider a cylindrical ohmic wire with the following dimensions: length = 10.0 m, radius = 0.05 m.…

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Q: The density of mobile electrons in copper metal is 8.4 x 1028 m3. Suppose that / 4.7 x 1018…

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Q: The diagram beiow shows a sled and rider sliding down a snow-covered hill that makes an angle of…

A: Required :  The direction of the normal force.

Q: The figure shows cross sections through three long conductors of the same length and material, with…

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Q: A copper wire is having a length of 8m and a radius of 32mm. The resistivity (p) of copper is…

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Q: There is a potential difference of 1.3 V between the ends of a 10 cm long graphite rod that has a…

A: Given  Potential difference between the ends is ∆V=1.3 V Length of the rod is l=10 cm=0.10m…

Q: Two conducting wires A and B of the same length and radius are connected across the same potential…

A: The dimensions of both wires are same. Now since the resistivity of A is nine times the resistivity…

Q: A cylindrical conductor has resistance of R0 = 950 Ω. It has length L, radius of the cross section…

A: Resistance of the cylindrical conductor is Ro = 950 Ω Length of conductor = L Radius of…

Q: If the resistivity of a particular wire is 75.56x10-8 Ω⋅m, the wire is 48.16mm in length, and the…

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Q: A conducting wire is 25 cm long and has a diameter of 0.5 mm. You measured the resistance of the…

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Q: An aluminum rod with a square cross section is 2.3 m long and 6.5 mm on edge. (a) What is the…

A: Given resistivities of the Aluminum and Copper are, ρAl=2.75×10-8 Ω mρCu=1.69×10-8 Ω m The…

Q: An electrical conductor designed to carry large currents has a circular cross section 2.40 mm in…

A: Given: The diameter of the wire is 2.40 mm or 2.40×10-3 m.           The length of the wire is 14.8…

Q: A cylindrical aluminum pipe of length 1.92 m has an inner radius of 1.77 ×10-3 m and an outer radius…

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Q: Two identical resistors of R0=32 omega are connected head to tail. Part (a) Express the resistance…

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Q: An aluminum rod with a square cross-section is 2.6 m long and 5.3 mm on edge. (a) What is the…

A: Given data: Length of aluminum rod is, La=2.6 m. Edge length of aluminum rod is, a=5.3 mm=5.3×10-3…

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: Cell membranes contain channels that allow K+ ions to leak out. Consider a channel that has a…

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Q: What is the resistance of 10.0 m of no. 18 copper wire (diameter 0.40 in)? (The resistivity of…

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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.