Question

A finite conducting wire is placed along the Y axis, and it carries current in +Y direction. The field at a point on +X axis will be towards .

• A. +Y direction
• B. -Z direction
• C. +X direction

Answer 1

The correct option is B -Z direction

Using right hand thumb rule, we can say the contribution due to each element of the wire will be in the -Z direction. Now counting all the contributions it will simply add up and the net field will also point in -Z direction.