Q) When magnetic field at P and Q is same then OP / OQ = - Physics - Moving Charges And Magnetism

Question

Q) When magnetic field at P and Q is same then OP / OQ = ?

(A) 2 3
(B) 1 2 3
(C) 2 2
(D) 2 3 / 2

Vijay Shankar Yadav · Accepted Answer

Dear Student ,
magnetic field at Q=μ04πMOQ3 and magnetic field at P=μ04π2MOP3according to question μ04πMOQ3=μ04π2MOP3so OPOQ=123
Regard

Q). When magnetic field at P and Q is same then OP / OQ = ? (A) 2 3 (B) 1 2 3 (C) 2 2 (D) 2 3 / 2