Figure shows a long wire bent at the middle to form a right angle.Show that the magnitudes of the ma
Channel: Doubtnut
Date: 2020-01-26

Figure shows a long wire bent at the middle to form a right angle.Show that the magnitudes of the magnetic fields at the points `Q` and `R` are unequal and find these magnitudes.The wire `w_(1)` and the circumference of circle are coplaner and `w_(2)` is perpendicular to plane of paper.Also find the ratio of field at `Q` and `R`.