A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x = -2.0 cm. A second, parallel wire carrying a 2.5 A current intersects the x-axis at x = 2.0 cm.
At what point on the x-axis is the magnetic field zero if the two currents are in the same direction?
At what point on the x-axis is the magnetic field zero if the two currents are in opposite directions?
PHYSICS!!! - bobpursley, Wednesday, March 31, 2010 at 4:59pm
I don't understand !!! after Physics.
part A is biot-savart problem, add the two magnetic fields to be zero, you know the total distance, currents.
partB. Same law. You know it wont be between the wires.
PHYSICS!!! - heather, Wednesday, March 20, 2013 at 3:59pm
part a is 0.67cm