A steady current I goes through a wire loop PQR having shape of a right angle triangle with PQ = 3 x , PR = 4 x and QR = 5 x . If the magnitude of the magnetic field at P due to this loop is k ( 48 π

Question

A steady current I goes through a wire loop PQR having shape of a right angle triangle with PQ = 3 x , PR = 4 x and QR = 5 x . If the magnitude of the magnetic field at P due to this loop is k ( 48 π x μ 0 ​ I ​ ) , find the value of k .

TestHub · Accepted Answer

Magnetic field at point P due to wires RP and RQ is zero. Only wire QR will produce magnetic field at P . r = 3 x cos 3 7 ∘ = ( 3 x ) ( 5 4 ​ ) = 5 12 x ​

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