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71.A long straight wires carries a current I let B1 be the magnetic field at the point p at a distance d from the wire consider a section of length l of this wire such that the point p lies on a perpendicular bisector of the section . Let BE be the magnetic field at this point due to this section only find the value d/l so that B2 differ from B1 by 1% |
| Answer» 71.A long straight wires carries a current I let B1 be the magnetic field at the point p at a distance d from the wire consider a section of length l of this wire such that the point p lies on a perpendicular bisector of the section . Let BE be the magnetic field at this point due to this section only find the value d/l so that B2 differ from B1 by 1% | |