Physics-
General
Easy
Question
Two long cylinders (with axis parallel) are arranged as shown to form overlapping cylinders, each of radius r, whose centers are separated by a distance d. Current of density J (Current per unit area) flows into the plane of page along the right shaded part of one cylinder and an equal current flow out of the plane of the page along the left shaded part of the other, as shown in the figure. The magnitude and direction of magnetic field at point O (O is the origin of shown x-y axes) are
, in the + y-direction
, in the + y-direction
- zero
- none of these
, in the + y-direction
, in the + y-direction
The correct answer is: , in the + y-direction
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