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i, four choices have
been provided. Select the correct alternative.
Two long parallel wires A and B separated by a distance d, carry current i_1 and i_2, respectively, in the same direction. Write the following steps in a sequential order to find the magnitude of the resultant magnetic field at a point '', which is between the wires and is at a distance ' x ' from the wire A. (All the physical quantities are measured in SI units)
(A) Note the given values of i_1, i_2,  d and x.
(B) Write the formula to find the magnetic field due to a long straight current carrying wire, i.e. B=μ_oi/2 π r.
(G) Find the directions of the magnetic field at ' P ' due to two wires A and B, using right-hand thumb rule.
(D) Determine the magnetic field at P due to wire A, using B_1=μ_0 i_1/2 π x.
(E) If the directions of magnetic field are same, then the resultant magnitude is equal to the sum of B_1 and B_2.
(F) Determine the magnetic field B_2 due to wire B at point P, ie. B_2=μ_0i̇_2/2 π(d-x).
(G) If the directions of magnetic fields are opposite to each other, then the resultant magnitude is equal to the difference of B_1 and B_2.
(a) DFCEGBA
(b) CDFEGBA
(c) ACBDFEG

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