Question

A proton moves along horizontal line and towards observer, the pattern of concentric circular field lines of
magnetic field which produced due to its motion :-
(1) ACW, In horizontal plane
(2) ACW, In vertical plane
(3) CW, In horizontal plane
(4) CW, In vertical plane
Explain.​

Answer 1

Answer:

ACW, in horizontal plane along the path of observer

Explanation:

A proton is positively charged particle. When it moves in a horizontal plane, it produces a circular field along its movement.

To determine the direction, consider a dotted line representing proton which is moving up of the page. If we assume that proton is moving out, then using the right hand rule, the direction of the magnetic field will be in anti-clockwise direction and along the path of the observer

Answer 2

(1) ACW, In horizontal plane

Explanation:

Proton is positively charged particle. When it moves in a horizontal plane, it produces a circular field along its movement. To determine the direction of the magnetic field, consider a dotted line representing proton which is moving up the page. If we assume that proton is moving out, then using the right hand rule, the direction of the magnetic field will be in anti-clockwise direction and along the path of the observer.

So Option 1 is the answer.