Two long straight parallel wires are 1.65 m apart and carry current in the opposite directions. Wire A has 6 A and wire B has 3 A. How far from wire A is a point where the net magnetic field from the two wires is zero? Please give your answer in meters.

A proton moving in a circular path perpendicular to a constant magnetic field takes 2.40 µs to complete one revolution. Determine the magnitude of the magnetic field.

A proton experiences the greatest force as it travels 2.9 x 106 m/s in a magnetic field when it is moving northward. The force is upward and of magnitude 7.2 x10-13 N. What is the magnitude and direction of the magnetic field?

In the figure below, four long straight wires are perpendicular to the page, and their cross-sections form a square of edge length a = 10.5 cm. Each wire carries 8.00 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. What is the magnitude and direction of the net magnetic force per meter of wire length on wire 4? magnitude      N/m direction      ° (counterclockwise from the positive x-axis) (please show units. It really helps me out)

Two long, parallel wires separated by a distance d carry currents in opposite directions. If the left-hand wire carries a current i/2 and the right-hand wire carries a current i, determine where the magnetic field is zero.

9 x 1021 electrons pass through the cross-section of a wire with a cross-sectional area of 9 mm2 in 1.4 minutes. What is the magnitude of the magnetic field formed at a distance of 36 cm from this wire? (Express your answer in the unit of µT)

The sketches show possible paths of the charge after it enters a region containing a uniform magnetic field pointing into screen. Before entering the field, the charge is moving with initial speed of 15 m/s. Which path closely resembles the actual path of the charge in the field? A В v = = 15 m/s v = 15 m/§ D v = 15 m/s v = 15 m/s. A X X X X B.

Two long parallel wires 79.4 cm apart are carrying currents of 12.6 A and 28.1 A in the opposite direction. What is the magnitude of the magnetic field halfway between the wires?

Two long parallel wires both carry a current of 158 A in the +z direction. One wire passes through the x-axis at x = 0.028 m, and the other passes through the y-axis at y = 0.088 m. What is the magnitude of the magnetic field at the origin? O 0.00107 T O 0.000217 T O 0.00118 T O 0.000592 T

A length L = 0.55 of a current-carrying wire is located within a magnetic field of magnitude 0.080 T (the field is directed perpendicularly inward in the figure, and is perpendicular to the direction of the current). The magnitude of the current is 8.5 amperes. What is the total force exerted on this length of wire? F = N X X X F₁ X X X X X X L X X X Bin X X X