A wire carries a current. If the wire diameter is doubled, the electron current increases by a factor of
A 8
B 14
C 2
D 16
A wire carries a current. If the wire diameter is doubled, the electron current increases by...
the current in a wire is doubled. what happens to (a) the current density, (b) the conduction-electron density, (c) the mean time between colisions, and (d) the electron drift speed? are each of these doubled, halved, or unchanged? explain.
A 0.880-mm-diameter silver wire carries a 50.0 mA current. What is the electric field in the wire? What is the electron drift speed in the wire?
A long, straight wire carries a current of 5.20 A. An electron is traveling in the vicinity of the wire. Part A At the instant when the electron is 4.30 cm from the wire and traveling with a speed of 6.10×104 m/s directly toward the wire, what is the magnitude of the force that the magnetic field of the current exerts on the electron? Part B What is the direction (relative to the direction of the current) of this force?...
A. 1x10-10 m/s A 0.65 mm diameter copper wire carries a tiny current of 2.3 uA. Estimate the electron drift velocity. B. 7x10-10 m/s O C. 2x10-10 m/s O d. 5.1x10-10 m/s
A 0.300-mm-diameter silver wire carries a 10.0 mA current. Part A What is the electric field in the wire? Express your answer with the appropriate units. Part B What is the electron drift speed in the wire? Express your answer with the appropriate units.
A silver wire of diameter 1.6 mm carries a current of 130 mA. The density of conduction electrons in silver is 5.8 times 10^28 m^-3. How long (on average) does it take for a conduction electron to move 1.0 cm along the wire? Min
Check my work Wire with current I Electron A long straight wire carries a current of 60.5 A. An electron, traveling at 1.00x 10 m/s, is 7.60 cm from the wire. What force acts on the electron if the electron's velocity is directed toward the wire? If the direction of force is perpendicular to the current, enter a negative value.
A d = 3.71 mm diameter wire carries an electric current of I = 18.2 A when the electric field is E = 5.72 times 10^-2 V/m along the wire. What is the current density? What is the conductivity of the wire? What is the resistivity of the wire?
A long, straight wire carries a current of 5.20 A. An electron is traveling in the vicinity of the wire.At the instant when the electron is 4.70 cm from the wire and traveling with a speed of 5.80×10^4 m/s directly toward the wire, what is the magnitude of the force that the magnetic field of the current exerts on the electron?
A circular coil of wire of 200 turns and diameter 2.0 cm carries a current of 5.0 A. It is placed in a magnetic field of 0.9T with the plane of the coil making an angle of 30° with the magnetic field. What is the magnetic torque on the coil? A circular coil of wire of 200 turns and diameter 2.0 cm carries a current of 5.0 A. It is placed in a magnetic field of with the plane of...