A long, straight wire carrying a current of 344 A is placed in a uniform magnetic field that has a magnitude of 7.54 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its perpendicular distance from the wire.

A 25 m wire stretched horizontally between two vertical posts, carries a current of 60 A. The wire experiences a magnetic force of 0.15 N due to earth’s magnetic field. Assuming the field makes an angle of 60.0° with respect to the wire, what is the magnitude of the field?

A beam of protons moves through a uniform magnetic field with a certain magnitude, directed along the positive z-axis. The protons have a velocity of magnitude 6.5 ×105 m/s in the x-z plane at an angle of 25° to the positive z axis. If the force on a proton is 7.3 ×10-14 N, what is the magnitude of the magnetic field? The charge of the proton is q = +1.6×10−19 C.

A straight 7.757 m wire carries a current of 0.895 A. If the wire is passed through a region of space with a uniform magnetic field of 0.665 T that is perpendicular to the flow of current, what is the magnitude of the force on the wire?

A wire is carrying a current of 3 Amperes in the +x direction and is located in a uniform magnetic field. The magnetic field, B, has a magnitude of 0.002 Tesla and is directed in the +z direction. (a) What is the magnitude of the magnetic force on a 0.5 meter segment of the wire? (b) What is the direction of this force?

A long straight wire carries 4 A along the +x axis. Find the magnitude and direction of the magnetic field at a point that is 20 cm above the wire.

A horizontal current-carrying wire that is perpendicular to the plane of the paper is placed in a uniform magnetic field of magnitude 2.2 mT that is parallel to the plane of the paper and points down. At the distance 1.0 cm to the right of the wire, the total magnetic field is zero.

In the figure below, a long circular pipe with outside radius R=2.18 cm carries a (uniformly distributed) current i = 11.2 mA into the page. A wire runs parallel to the pipe at a distance of 3,00R from center to center. Find the (a) magnitude and (b) direction (into or out of the page) of the current in the wire such that the ratio of the magnitude of the net magnetic field at point P to the magnitude of the net magnetic field at the center of the pipe is 0.673, but it has the opposite direction. Wire O (a) Number (b) Units Pipe

A five-sided object, whose dimensions are shown in the drawing, is placed in a uniform magnetic field. The magnetic field has a magnitude of 0.30 T and points along the positive y direction. Determine the magnetic flux through each of the five sides.