Solution:
Where le = Ac = equivalent length. It is evident that is zero when and are parallel (as shown in the figure).
A B C is a current carrying conductor carrying a current i = 2A. If length of the segment AB is m, then what should be the length of BC, so that net force on the conductor ABC becomes zero?
Where le = Ac = equivalent length. It is evident that is zero when and are parallel (as shown in the figure).