Respuesta :

Explanation:

The region around a moving charge in which it experience a force is called magnetic field. The force is called magnetic force. The force experienced due to moving charge is given by :

[tex]F=q(v\times B)[/tex]

q is the charged particle

v is the speed of particle

B is the magnetic field

The number of magnetic field lines passing through any surface is called magnetic flux. The formula used to find the magnetic flux is given by :

[tex]\phi=B.A[/tex]

[tex]\phi=BA\ cos\theta[/tex]

Hence, this is the required solution.