Question

a charge q is released in presence of electric (E) and magnetic field(B) then after some time its velocity is v

Answer 1

The force on a charged particle due to an electric field is directed parallel to the electric field vector in the case of a positive charge, and anti-parallel in the case of a negative charge. It does not depend on the velocity of the particle.In contrast, the magnetic force on a charge particle is orthogonal to the magnetic field vector, and depends on the velocity of the particle. The right hand rule can be used to determine the direction of the force.An electric field may do work on a charged particle, while a magnetic field does no work.The Lorentz force is the combination of the electric and magnetic force, which are often considered together for practical applications.Electric field lines are generated on positive charges and terminate on negative ones. The field lines of an isolated charge are directly radially outward. The electric field is tangent to these lines.Magnetic field lines, in the case of a magnet, are generated at the north pole and terminate on a south pole. Magnetic poles do not exist in isolation. Like in the case of electric field lines, the magnetic field is tangent to the field lines. Charged particles will spiral around these field lines

Answer 2

V ∝ E

Explanation:

• As we know that the force that a charged particle carries is directly parallel to the vector of the electric field because of the electric field in +ve charge and anti-parallel in -ve charge without relying on the velocity. While the magnetic force carried by a charged particle is perpendicular to the vector of the magnetic field and relies directly on the particle's velocity.
• The other difference between the electric and magnetic field on a charged particle is that the former may function on a charged particle but the latter does not. Lorentz force is an amalgamation of both types of forces and employed together for several practices.
• The electric fields are produced with +ve charges while breaks off with -ve charges. In separate, the lines of the field are spreadingly extrinsic and thus, the field is tangent across the lines.
• The magnetic field lines are produced at the south pole. Separately, the magnetic field lines do not exist.
• In the situation of electric field lines, the magnetic field lines are tangent and the charged particles circle around these lines. Thus,
• V ∝ E.

Learn more: Velocity

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