A straight, cylindrical wire lying along the x axis has a length of 0.72 m and a diameter of 0.78 mm. It is made of a material described by Ohm's law with a resistivity of ρ = 4.74 ✕ 10−8Ω· m. Assume a potential of 4.43 V is maintained at the left end of the wire at x = 0. Also assume V = 0 at x = 0.72 m. Find the current density (in A/m2) in the wire. Use scientific/exponential notation to represent your answer to this problem. Eg., -0.0001 can be written as 1.0e-4 or as 1.0E-4. Spaces are not allowed.

Q: potential difference of 12 V is found to produce a current of 0.41 A in a 3.5 m length of wire with…

A:

Q: A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the…

A:

Q: Consider a resistor of resistivity 4.12 × 10-8 Ω • m. If an electric field of 19 V/m is applied…

A: Electric field and resistivity relation is E=ρJ Here ρ is resistivity, E is electric field and J is…

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

A:

Q: A cylindrical resistor of radius 3.9 mm and length 2.0 cm is made of material that has a resistivity…

A:

Q: A potential difference of 13 V is found to produce a current of 0.39 A in a 3.6 m length of wire…

A: (a) Let V be defined as the potential difference and I be defined as the current. Let R be defined…

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

A:

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

A:

Q: What current flows through a 2.90 cm diameter rod of pure silicon that is 15.5 cm long, when 1000 V…

A: Solution:   Given Values,   The radius of the rod (r)=d2=2.90 cm2=0.0145 m Length of the wire…

Q: A special copper extension cord has length L = 5.25 m and rectangular cross-section given by…

A:

Q: A straight, cylindrical wire lying along the x axis has a length of 0.616 m and a diameter of 0.6…

A: Given problem is based on the microscopic form of Ohm's law. It states that,

Q: A straight, cylindrical wire lying along the x axis has a length of 0.411 m and a diameter of 0.7…

A: Given   Length of the wire , L= 0.411 m Diameter of the wire , d= 0.7 mm Resistivity of  the…

Q: A potential difference of 14 V is found to produce a current of 0.42 A in a 3.2 m length of wire…

A:

Q: A copper wire has a circular cross section with a radius of 3.20 mm. (a) If the wire carries a…

A: (a) Expression for drift speed of electrons vd=InqA=Inqπr2=2.60 A8.46×1028 electronsm1.602×10-19…

Q: A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the…

A: Given data: The length of the semiconducting material is, L= 5 m The cross-sectional area of the…

Q: Calculate the drift velocity of electrons in a copper wire with a diameter of 2.053 mm (12-gauge)…

A:

Q: A straight, cylindrical wire lying along the x axis has a length of 0.450 m and a diameter of 0.165…

A:

Q: In a 100-m-long conductor of cylindrical cross-section (radius ro = 5 mm), the axial current density…

A: Given that, Length of conductor, l=100 m Radius, r0 =5mm Axial current density, J=z^2 A/m2…

Q: Whale and Kanmuro are two islands located in the Chimera archipelago. These two are separated by a…

A: Given data: Distance of separation d =20 miles=32.1689 km Maximum power P =600 MW Voltage…

Q: A cylindrical resistor of length a, circular cross-sectional area of radius a, and resistivity…

A:

Q: A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the…

A:

Q: A straight, cylindrical wire lying along the x-axis has a length L and a diameter d It is made of a…

A:

Q: A copper wire of cross-sectional area 1.00 mm2 has a current of 7.40 A flowing along its length.…

A: number density  n = (1.3×density×NA )/molar mass  n = (1.3×9000×6.02×1023 )/0.064  n = 1.1×1029

Q: A cylindrical resistor of length a, circular cross-sectional area of radius a, and resistivity…

A:

Q: A block in the shape of a rectangular solid has a cross-sectional area of 2.84 cm² across its width,…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: An aluminum wire having a cross-sectional area equal to 5.10*10^-6 m^2 carries a current of 4.00 A.…

A:

Q: Consider a carbon rod resistor that has a uniform cross-sectional area of 5.00 mm-. When a potential…

A: The resistance of a material is equal to the resistivity and length of the conductor and inversely…

Q: A potential difference of 12 V is found to produce a current of 0.35 A in a 3.3 m length of wire…

A:

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

A:

Q: An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.215 V/m imposed along…

A:

Q: A potential difference of 14 V is found to produce a current of 0.40 A in a 3.7 m length of wire…

A:

Q: A certain wire has 8.03x1018 electrons pass a single point every second. The wire has a diameter of…

A:

Q: A potential difference of 13 V is found to produce a current of 0.43 A in a 3.6 m length of wire…

A: Given, potential difference =13 v current =i=0.43A length =l=3.6 m radius =r=0.39 cm Let resistance…

Q: A block in the shape of a rectangular solid has a cross-sectional area of 3.63 cm² across its width,…

A:

Q: A block in the shape of a rectangular solid has a cross-sectional area of 5.04 cm² across its width,…

A:

Q: A potential difference of 11 V is found to produce a current of 0.42 A in a 2.8 m length of wire…

A:

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

A:

Q: determine the drift velocity, in mm/s, of the free electron constituting the current.

A: Given: Resistivity of resistor, ρ=3.83×10-8Ωm Electric field, E=18V/m Electron per volume is,…

Q: A straight, cylindrical wire lying along the x axis has a length of 0.854 m and a diameter of 0.78…

A:

Q: A tungsten wire has a radius of 0.068 mm and is heated from 20.0 to 1326 oC. The temperature…

A: Given, radius r = 0.068 mm = 0.068 × 10-3 m    temperature changes T - T0 = 1326 °C - 20.0 °C…

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.