Question

Let consider two long, paralled wires with distance d between them. The wire on the left-hand-side a current of I/2 and the wire on the right-hand-side carries current of +I. Find the position where the magnetic field is zero. carries

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Answer 1

HIC KX d d+x Let He magnetic field at P is zero. MOJ/2 B = The magnetic field at p due to the left wire- 2 x negatiresign Indicatus magnetic freld is is going into He page. B22 The magnetic field at p due to the Right wire = + No f 27 (d+1) L pus sign indicate the magnetic field at P is going out of the page. Net Magnetic field at p= B = Bit B : + 1 -MOI чтX Mo I 21 (0+2) MOI Mo I 4 ax 21 (0+ x) 21 (0+x) = 4MX dtx 2x 2x-slad Bled The Net magnetic field will be zero at a point Pi a distance g xad from the left which 1$ اله wire