Question:

A steady current I goes through a wire loop PQR having shape of a right angle triangle with PQ = 3x, PR = 4x and QR = 5x. if the magnitude of the magnetic field at P due to this loop is k (μ0I/48πx) , find the value of k.

Options :

  • (a) 8
  • (b) 3
  • (c) 7
  • (d) None of these

Answer :

(c) 7

Answer Steps :

step 1:

step 2:

step 3:

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