The magnetic field a distance 2 cm from a long straight current-carrying wire is 2.0 x 105 T. What is the current in the wire? 25 A 4.0 A O 2.0 A O 1.0 A O 0.16 A

An electron (electron charge = -1.60 x 10-19 C) is moving at 370000 m/s in the positive x direction. A magnetic field of 0.700 T is oriented in the positive z direction. What is the magnetic force on the electron? 4.14 x 10-14 N in the positive y direction 4.14 x 10-14 N in the negative x direction 4.14 x 10-14 N in the negative y direction 4.14 x 10-14 N in the negative z direction No magnetic force is experienced by the electron. 4.14 x 10-14 N in the positive z direction 4.14 x 10-14 N in the positive x direction

Two long straight current-carrying wires are lined up parallel to one another at a distance dd. Currents of 4 A and 2 A flow through the wires, both in the same direction generating the field of 8.7x10-6 T at a midpoint between them. Calculate the distance between the wires. Give your answer in SI units. Use μ0=4π×10−7μ0=4π×10−7 Hm-1.

A long, straight wire carries a current of 69 A. The magnetic field produced by this current at a certain point is 9.0 x 10-5 T. How far is the point from the wire?

Let's take the Earth's magnetic field BE = 1.70 x 10-4 T pointing north. A metal cable attached to a space station stretches radially outward by 2.65 km. What would be the potential difference (AV) that develops between the ends of the cable if it travels westbound around Earth at 5.2 km/s? O 2.34 kV O 4.25 kV O 3.92 kV O 14.5 V

A solenoid 3.0 cm long consists of 9000 loops of wire. If the magnetic field inside the solenoid is measured as 1.0 T, what is the magnitude of the current that flows through it? a 0.037 A b 0.37 A c 2.65 A d 3.05 A e 0.58 A

A circular coil of wire of 200 turns and diameter 5 cm carries a current of 4 A. It is placed in a magnetic field of 0.70 T with the plane of the coil making an angle of 30° with the magnetic field. What is the torque on the coil? 2.5 N·m 1.8 N.m 0.48 N.m 0.95 N·m

A proton travelling at a high velocity enters a 0.45 T magnetic field and travels in a circular path of radius 0.28 m as shown. A B=0.45 T X X X X X X X X X X X B What is the kinetic energy of the proton? And which path will the proton follow? A or B? x X X X X

So theres 2 long straight current-carrying wires are lined up parallel to one another at a distance ?d. Currents of 4 A and 2 A flow through the wires, both in the same direction generating the field of 9.2x10-6 T at a midpoint between them. Calculate the distance between the wires. Give your answer in SI units. Use ?0=4?×10−7μ0=4π×10−7 Hm-1.