12
Chapter 26, Problem 018 A wire 5.66 m long and 7.36 mm in diameter has a...
A wire 3.66 m long and 6.77 mm in diameter has a resistance of 21.7 m?. A potential difference of 17.5 V is applied between the ends. (a) What is the current in amperes in the wire? (b) What is the magnitude of the current density? (c) Calculate the resistivity of the material of which the wire is made. (a) Number Units (b) Number Units (c) Number Units A wire 3.66 m long and 6.77 mm in diameter has a...
A wire 3.07 m long and 8.24 mm in diameter has a resistance of 17.2 mΩ. A potential difference of 27.7 V is applied between the ends. (a) What is the current in amperes in the wire? (b) What is the magnitude of the current density? (c) Calculate the resistivity of the material of which the wire is made.
problem A wire 4.00 m long and 6.00 mm in diameter has a resistance of 15.0 m2. A potential difference of 22.0 v is applied between the ends Resistivity, p Temperature Coefficient of Resistivity, a(K-1) Material (2 m) Typical Metals 41 x 10-3 Silver 1.62 x 10 43 x 10-3 1.69 x 10 Copper 40 x 10-3 2.35 x 10-8 Gold 4.4 x 10 2.75 x 10 Aluminum 4.82 x 10-s 0.002 x 10-3 Manganin 4.5 x 10-3 5.25 x...
Chapter 26, Problem 064 A cylindrical resistor of radius 2.7 mm and length 3.0 cm is made of material that has a resistivity of 2.8 x 10-5 2.m. What are (a) the magnitude of the current density and (b) the potential difference when the energy dissipation rate in the resistor is 1.0 W? (a) Number Units (b) Number Units SHOW HINT
Chapter 26, Problem 051 GO Wire C and wire D are made from different materials and have length Lc = LD = 2.5 m. The resistivity and diameter of wire C are 4.4 x 10-612-m and 1.03 mm, and those of wire D are 1.4 x 10-6 2-m and 0.70 mm. The wires are joined as shown in the figure and a current of 2.2 A is set up in them. What is the electric potential difference between (a) points...
A 5.0 V potential difference is applied between the ends of a 0.80-mm-diameter, 85-cm-long nichrome wire. What is the current in the wire? resistivity of nichrome is 1.5*10^-6 (I think, if im wrong use something else)
ОА A wire 15.0 m long has a diameter of 0.321 mm. When 1.50 V is applied across the ends of the wire, the current is 0.0833 A. What is the resistivity of the material? 9.71 x 10-80 m ОВ. None of these answers Ос. 3.89 x 10-70m OD 674x 10-100m 1.24 x 1070 m ОЕ
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.205 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in . m) of aluminum at this temperature. p= 2.m (b) What is the current density (in MA/m2) in the wire? = C MA/m2 (c) What is the total...
An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.235 V/m imposed along its entire length. The temperature of the wire is 45.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in Ω · m) of aluminum at this temperature. ρ = Ω · m (b) What is the current density (in MA/m2) in the wire? J = MA/m2 (c) What is...
An aluminum wire with a diameter of 0.125 mm has a uniform electric field of 0.295 V/m imposed along its entire length. The temperature of the wire is 55.0° C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity of aluminum at this temperature. ρ = 3.2e-8 Ω·m (b) What is the current density in the wire? J = MA / m2 (c) What is the total...