A conductor has a cross-sectional area of 2.3x106 m2 and the number of free electrons per unit volume is 8.5 x1028 electron/m3. When the current is 16.5 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x1019 С. Select one: A. 0.53 В. О.36 C. 69.25 D. 52.75 E. 0.69

A conductor has a cross-sectional area of 2.3x106 m2 and the number of free electrons per unit volume is 8.5 x1028 electron/m3. When the current is 16.5 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x1019 С. Select one: A. 0.53 В. О.36 C. 69.25 D. 52.75 E. 0.69

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 42P: What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103...

See similar textbooks

Similar questions

What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103 V is applied to it? (Such a rod may be used to make nuclear- particle detectors, for example.)
A cylindrical conducting wire which is 342.57cm long, 85.39mm thick and resistivity of 3.13Ω.m, If current I = 12.9A is generated by flowing of 217 electrons/m3 via a conductor, Then the electrons through this conductor (b) have a density J =?
A cylindrical conducting wire which is 342.57cm long, 85.39mm thick and resistivity of 3.13Ω.m, (a) has the resistance of R = ? If current I = 12.9A is generated by flowing of 217 electrons/m3 via a conductor, Then the electrons through this conductor (b) have a density J = ?and (c) are drifting at a speed of VD = ?
If a current of 80.0 mA exists in a metal wire, (a) howmany electrons flow past a given cross-section of the wire in10.0 min? (b) In what direction do the electrons travel withrespect to the current?
A rectangular block of copper has sides of length 10. cm, 20. cm,and 40. cm. If the block is connected to a 6.0 - V source acrosstwo of its opposite faces, what are (a) the maximum currentand (b) the minimum current the block can carry?
Consider a resistor of resistivity 3.96 × 10-8 Ω • m. If an electric field of 12 V/m is applied across the resistor and the electron volume concetration in the conductor is 5.16 × 1028 per m3, determine the drift velocity, in mm/s, of the free electron constituting the current.
Consider an electron moving at a speed of 5.48 105 m/s in a circular path, of radius 2.12 10-10 m, around a proton. What is the effective current, in mA, associated with this orbiting electron?
A copper wire has a circular cross section with a radius of 1.25 mm. (a) If the wire carries a current of 3.70 A, find the drift speed of the electrons in this wire. (b) All other things being equal, what happens to the drift speed in wires made of metal having a larger number of conduction electrons per atom than copper? Explain.
Consider a conductor of length 69 millimeters and inner and outer diameters 7.98 millimeters and 13.77 millimeters, respectively. The charge carriers, as a group, travels end to end of the conductor in 4.68 seconds. If the electron volume concentration of the conductor is 7.00 × 1025 electrons per cubic meter, find the total current, in amperes, through the conductor.
A metal object having a length (10m), cross section area (0.5 mm2), and resistance (0.52) is connected to a potential difference source of 5V at room temperature. If the density of free electrons equals (8×1025 electron/m³), Calculate the thermal velocity.
A conductor has a cross-sectional area of 2.3x106m² and the number of free electrons per unit volume is 8.5 x1028 electron/m. When the current is 14.5 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x1019 C.
A / 34.5-m length of copper wire at 20.0°C has a radius of 0.25 mm. If a potential difference of 9.00 V is applied across the length of the wire, find the current in the wire. B/If the wire is heated to 30.0°C while the 9.00-V potential difference is maintained, what is the resulting current in the wire?