Question

A steady current loc
shape of a right
current I goes through a wire loop PQR having
of a right angle triangle with PQ = 3x, PR = 4x and
2-5x. If the magnitude of the magnetic field at P due to
ul )
1, find the value of k. [IIT-JEE 2009]

(b) 3
(c) 7
(d) None of these
this loop is kl
(a) 8​

Answer 1

Answer:

but in question where is k