Question

A current is flowing in a wire as shown. Choose the correct options regarding the magnetic field around the wire.

• A. Directed into the screen at point S
• B. Directed out of the screen at point Q
• C. Doesn’t exist at axial points P and R
• D. Doesn’t exist at outer points Q and S

Answer 1

Answer: (A), (B), (C)

Doesn’t exist at axial points P and R

Using the right hand thumb rule, as the current is flowing from left to right, the thumb will point towards the right side, and the curl of fingers will give the direction of magnetic field.