# Question: A straight horizontal segment of wire carries a current in

A straight, horizontal segment of wire carries a current in the + x-direction in a magnetic field that is directed in the –z-direction.

(a) Is the magnetic force on the wire directed in the (1) – x-, (2) +z-, (3) +y-, or (4) –y-direction? Explain.

(b) If the wire is 1.0 m long and carries a current of 5.0 A and the magnitude of the magnetic field is 0.30 T, what is the magnitude of the force on the wire?

(a) Is the magnetic force on the wire directed in the (1) – x-, (2) +z-, (3) +y-, or (4) –y-direction? Explain.

(b) If the wire is 1.0 m long and carries a current of 5.0 A and the magnitude of the magnetic field is 0.30 T, what is the magnitude of the force on the wire?

## Relevant Questions

A 2.0-m length of straight wire carries a current of 20 A in a uniform magnetic field of 50 mT whose direction is at an angle of 37o from the direction of the current. Find the force on the wire. A nearly horizontal dc power line in the midlatitudes of North America carries a current of 1000 A directly eastward. If the Earth’s magnetic field at the location of the power line is northward with a magnitude of 5.0 x ...(a) Show that the right-hand side of Eq. 19.13b gives the correct SI units for magnetic field. (b) Show that Eq. 19.13 b reduces to Eq. 19.13a when the central axis location is at the center of the loop. A positive charge moves horizontally to the right across this page and enters a magnetic field directed vertically downward in the plane of the page. (a) What is the direction of the magnetic force on the charge: (1) into ...Four wires running through the corners of a square with sides of length a, as shown in Fig. 19.41, carry equal currents I. Calculate the magnetic field at the center of the square in terms of I and a.Post your question