Questions
Two parallel wires carrying equal currents in opposite directions are placed at x = ±a parallel to y-axis with z = 0. Magnetic field at origin O is and at P (2a, 0, 0) is . Then, the ratio is
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Correct option is A
B1=μ0i2πa+μ0i2πa=μ0iπa B2=μ0i2π.3a-μ0i2πa=μ0i3πaSimilar Questions
Two infinitely current carrying insulated wires AB and CD are carrying same current I. The wires cross each other at right angles as shown in figure. Three identical conductors P1Q1 , P2Q2 and P3Q3, carrying same current are placed a shown in figure and the forces acting on them are F1 , F2 and F3 respectively. Then select the correct option.
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