Homework Help: Physics

Posted by mm. on Monday, March 15, 2010 at 1:54pm.

Two current carrying wires cross at right angles as indicated in the figure.

If the wires are not restrained, what statement best describes the motion of the wires?

Hint: To help you visualize the situation, draw first the magnetic field that Wire 1 makes at the points shown on Wire 2. Use those magnetic fields and the current of Wire 2 to find the forces on Wire 2. Repeat the same procedure for the magnetic field that Wire 2 makes at the points shown on Wire 1. Use this now to find the forces on Wire 2.

Wire 1 moves out of the page; Wire 2 moves into the page
Wire 1 rotates clockwise; Wire 2 rotates counterclockwise

Wire 1 rotates counterclockwise; Wire 2 rotates clockwise

Wire 1 moves up; Wire 2 moves to the left
Wire 1 moves down; Wire 2 moves to the right

Physics - mm., Monday, March 15, 2010 at 5:01pm
wire 1 has a horizontal current to the left, wire 2 has a vertical current pointing up
Physics - PEACE :), Monday, March 15, 2010 at 9:28pm
Using RHR i got
Wire 1 rotates clockwise; Wire 2 rotates counterclockwise
Physics - Anonymous, Monday, March 15, 2010 at 9:46pm
thats wat i got as well but is that correct
Physics - PEACE :), Monday, March 15, 2010 at 9:54pm
i am not sure. :(
Physics - mm., Monday, March 15, 2010 at 9:54pm
ya thats correct

thanks

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