A SHORT CONDUCTOR OF LENGTH 5 cm IS PLACED PARALLEL TO A LONG CONDUCTOR OF LENGTH 1 5m NEAR ITS - Physics - Moving Charges And Magnetism

Question

A SHORT CONDUCTOR OF LENGTH 5 cm IS PLACED PARALLEL TO A LONG
CONDUCTOR OF LENGTH 1 5m NEAR ITS CENTRE THE CONDUCTOR CARRY
CURRENT 4 0A AND 5 0A RESPECTIVELY IN SAME DIRECTION WHAT IS TOTAL
FORCE EXPERIENCED BY LONG CONDUCTOR WHEN THEY ARE 3 0 cm APART
?

Shobhit Mittal · Accepted Answer

current in short one is 4A and in long is 3Afield at long conductor due to short conductor 
B=4μ02π0
03force on the long  conductor F=4μ02π0
03*3*1 5=10-7*8*150=1 2*10-4 N Regards

A SHORT CONDUCTOR OF LENGTH 5 cm IS PLACED PARALLEL TO A LONG CONDUCTOR OF LENGTH 1.5m NEAR ITS CENTRE.THE CONDUCTOR CARRY CURRENT 4.0A AND 5.0A RESPECTIVELY IN SAME DIRECTION .WHAT IS TOTAL FORCE EXPERIENCED BY LONG CONDUCTOR WHEN THEY ARE 3.0 cm APART ?