A long solenoid has 108 turn cm and carries current i . An electron moves within the solenoid in a circle of radius 6.6 cm perpendicular to the solenoid axis. The speed of the electron is 0.0460c (c = speed of light). Find the current in the solenoid in Ampere.

An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.215 T. If the kinetic energy of the electron is 4.20 × 10-19 J, find the speed of the electron and the radius of the circular path. (a) the speed of the electron m/s (b) the radius of the circular path μm

Q. 11: Electron moves in uniform magnetic field perpendicular to direction of field. The magnitude of field is 35.21 × 10-6 T. Calculate the in which it will perform one revolution.

AY R R/2|; d A single current-carrying circular loop of radius R = 8.8 cm is placed next to a long straight wire as shown in Figure. A current i1 = 7.2 A is passing through the wire towards right. At a certain moment an electron is moving at a velocity v = 700.0 jm/s toward the centre of the circular wire. At the instant shown in figure, the electron's distance from the wire is d — 2.1ст. The z axis points out of the page in the coordinate system shown in the figure which is represented by the circle with a dot inside. a) Compute the magnitude of the magnetic field at the centre c due to the current passing through the straight wire.

A proton is travelling through a bubble chamber in a direction perpendicular to the chamber's uniform magnetic field of 0.5 T. If its path follows a circle of radius 115 µm, how fast is it going, in m/s?

An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.280 T. If the kinetic energy of the electron is 2.60 x 10-19 J, find the speed of the electron and the radius of the circular path. (a) the speed of the electron X Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) the radius of the circular path X Your response differs from the correct answer by more than 10%. Double check your calculations. μm

An electron passes through a point 3.89 cm from a long straight wire as it moves at 33.9% of the speed of light perpendicularly toward the wire. At that moment a switch is flipped, causing a current of 14.7 A to flow in the wire. Find the magnitude of the electron's acceleration a at that moment.

A solenoid in your car is 36 cm long and has a diameter of 7.9 cm. It is made of copper wire with a radius of 0.50 mm. The turns are closely packed and form a single layer. Assume the resistivity of copper is 1.68 ✕ 10−8 Ω · m. (a) When the solenoid is connected to your battery with E  = 11.6 V, what is the magnetic field inside the solenoid? (Enter the magnitude.)  T

A straight wire in a magnetic field experiences a force of 0.032 N when the current in the wire is 1.5 A. The current in the wire is changed, and the wire experiences a force of 0.074 N as a result. What is the new current?

Two 15.9-m long straight wires carry current in the same direction. One has a current of 15.8 A and the other has a current of 18.2 A. How far apart must they be so that the force between them does not exceed 0.050 N? Please give your answer in Newtons.