A 13-cm length of wire is held along an east-west direction and moved horizontally to the north with a speed of 2.2 m/s in a region where the magnetic field of the earth is 55 micro-T directed 28° below the horizontal. What is the magnitude of the potential difference between the ends of the wire? Write your answer in micro-volts.

A metal strip 5.00 cm long, 0.800 cm wide, and 0.700 mm thick moves with constant velocity through a uniform magnetic field B = 1.00 T directed perpendicular to the strip, as shown in the figure. A potential difference of 4.70 mV is measured between points x and y across the width of the strip. Calculate the speed v (in m/s). Hint: How fast are the electrons moving through the magnetic field? Give your answer as only the numerical value in the SI units specified. e is interpreted as x10^ for use with large or small values; 1.01e2 is interpreted as 1.01 x 102. B

A cylindrical wire conductor has radius R = 8 mm. The wire carries a current of 2.0 A  which is uniformly distributed over the cross-section of the wire. What is the magnitude of the magnetic field at a radial distance of r=3 mm from the axis of the wire?

- An electron moves along the z-axis with vz 4.7 x 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the following (x, y, z) positions? ▾ Part B (0 cm, 0 cm, 1 cm) Express your answers using two significant figures. Enter your answers numerically separated by commas. Bz Bz, By, B₂ = Submit Part C BI, By, B₂ = 15. ΑΣΦ Submit Request Answer (0 cm, 2 cm, 1 cm) Express your answers using two significant figures. Enter your answers numerically separated by commas. VG ΑΣΦ Request Answer ? ? T T

An alpha particle (consisting of two protons and two neutrons), traveling at a speed of v = 1.2 x 105 m/s, enters a region of constant magnetic field of strength B = 1.9 T as shown in the figure. The direction of B is out of the image. The alpha follows a path that is a circular arc of radius r. In meters, what is the radius of curvature r of the path taken by the alpha particle?

In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 14.0 cm. Each wire carries 3.50 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. In unit-vector notation, what is the net magnetic force per meter of wire length on wire 4? î+ i ĵ Units Number -2.63E-5 2.38E-5 N/m

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 3x10-6 T at a midpoint between them. Calculate the distance between the wires. Give your answer in SI units. Use μ0=4π×10−7 Hm-1.

In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 18.0 cm. Each wire carries 6.50 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. In unit-vector notation, what is the net magnetic force per meter of wire length on wire 4?

A square loop of wire is 5.0 cm on a side. It carries a current of 2.0 Amps and is perpendicular to a magnetic field with a strength of 3000 T. What is the magnitude of the torque on the loop in Newton-meters?

Certain experiments must be performed in the absence of any magnetic fields. Suppose such an experiment is located at the center of a large solenoid oriented so that a current of I = 2.70 A produces a magnetic field that exactly cancels Earth's 3.70 ✕ 10−5 T magnetic field. Find the solenoid's number of turns per meter.