Homework Help: physics

Posted by Raul on Monday, March 8, 2010 at 11:01pm.

A current I = 16 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.15 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in the region through which the current passes.

physics - drwls, Monday, March 8, 2010 at 11:18pm
When the current I and mgnetic field B are perpendicular,

F = B I L

In your case, force per unit length F/L = 0.15 N/m; therefore

B = (0.15 N/m)/16 A = 9.4*10^-3 Tesla

The direction of the field is the z direction. As to whether it is up or down, use the right-hand rule to get the direction of I x B, and make sure it is in the -y dorection

Answer this Question

Related Questions

Physics - An electron moving along the positive x axis perpendicular to a ...
physics - There is a 0.225 T magnetic field directed along the +x axis and a ...
physics - A wire of length 11 cm carries a current of 1.1 A. When the wire is ...
physics - A wire carries a current north. Above the wire the magnetic field is ...
Physics - A rectangular coil of 70 turns, dimensions 0.100 m by 0.200 m and ...
PHYSICS!!! - A long wire carrying a 5.0 A current perpendicular to the xy-plane ...
Physics - Electromagnetism - This is the last question for a final exam ...
physics - A loop of wire is lying flat on a tabletop. A uniform magnetic field ...
physics - A loop of wire is lying flat on a tabletop. A uniform magnetic field ...
physics - A loop of wire is lying flat on a tabletop. A uniform magnetic field ...

For Further Reading

First Name:
School Subject:
Answer: