A long straight wire, carrying current I, is bent at its midpoint to form an angle of 450. Induction of magnetic field at point P, distance R from point of bending (as shown in figure), is equal to
A long straight wire, carrying current I, is bent at its midpoint to form an angle of 450. Induction of magnetic field at point P, distance R from point of bending (as shown in figure), is equal to