Chapter 20, Problem 12Q

To determine

Indicate the direction of magnetic felid.

Answer to Problem 12Q

Solution:

The direction of magnetic field is shown below.

Explanation of Solution

Given:

The charge particle is moving in non-uniform magnetic field as shown in the figure.

Formula Used:

$F=qvB$

Right hand rule: According to right hand rule to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.

$F=qvB$

Where,

F = force on charged particle

q = charge on the particle

B = magnetic field

Direction at a: According to right hand rule the direction of magnetic field is in north direction

Direction at b: According to right hand rule the direction of magnetic field is in north-west direction

Direction at c: According to right hand rule the direction of magnetic field is in north-east direction

Direction at d: According to right hand rule the direction of magnetic field is in east direction

Direction at e: According to right hand rule the direction of magnetic field is in west direction