Posted by OLLIJURT on Wednesday, March 31, 2010 at 3:54pm.
A long wire carrying a 5.0 A current perpendicular to the xyplane intersects the xaxis at x = 2.0 cm. A second, parallel wire carrying a 2.5 A current intersects the xaxis at x = 2.0 cm.
PART A
At what point on the xaxis is the magnetic field zero if the two currents are in the same direction?
PART B
At what point on the xaxis 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 biotsavart 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