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A long, straight wire carrying a current of 311 A is placed in a uniform magnetic field that has a magnitude of 6.44 × 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.

An electron moves across Earth’s equator at a speed of 2.5 x 106 m/s and a direction 35o north of east.  At this point, Earth’s magnetic field has a direction due north, is parallel to the surface, and has a value of 0.1 x 10-4 T.  What is the magnitude of the force acting on the electron due to its interaction with Earth’s magnetic field?

- 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

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

The figure below shows two long parallel wires that are 14 cm apart.  Wire 1 carries a current, I1=4.6 A going up. Wire 2 carries a current, I2=3.25 A going down. What is the magnitude and direction of the magnetic field at point P due to Wire 1?  What is the magnitude and direction of the magnetic field at point P due to Wire 2? What is the magnitude and direction of the net magnetic field at the point P due to both wires?

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?

In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 10.0 cm. Each wire carries 9.00 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 Number i i+ i jUnits N/m

Two long parallel wires carry currents of 2.91 A and 8.05 A. The magnitude of the force per unit length acting on each wire is 7.29 x 10- N/m. Find the separation distance d of the wires expressed in millimeters. d = mm