Can any one of you please help me Please:

 

why the tangent drawn to the lines of force in an electric field gives the accletation of the particle while the tangent drawn to the lines of force imerging from magnetic field gives the velocity?

 

#a charged particle is left to move freely on a non uniform electric field wouldn't move along the lines of force ,as the acccleration vector doesnot lie in the same plane as to the direction of lines of force[as compared to that in uniform electrical field,it would move along the line of force]

 

#While in contrary,if a monopole is left to move in a non uniform or uniform magnetic field,it would always move along the lines of force..