Why does a charge at rest experience no force in magnetic field?

As the charged particle is at rest, its velocity, V = 0 and magnetic force, F = qVB = 0. But as the particle at rest experiences no electromagnetic force, the electric field must be zero. This is because electric force acts on a particle whether it is at rest or in motion.

Why is a magnetic field created only by moving charges?

It requires electrons and protons to produce a magnetic field. As the electrons move relative to protons (ions) there is a relativistic charge per unit volume difference between the positive and the negative charges. This causes any external charges to feel a force we know as the magnetic field.

Why does the motion of a moving charged particle in a magnetic field not change?

Since the magnetic force is perpendicular to the direction of travel, a charged particle follows a curved path in a magnetic field. The particle’s kinetic energy and speed thus remain constant. The direction of motion is affected but not the speed.

Is it possible to set a charge at rest into motion with magnetic field?

An electron at rest in a magnetic field experiences no force, so cannot be set in motion by the magnetic field. If it were placed at rest in an electric field, it will accelerate under the electrostatic force.

Which particle is not affected by a magnetic field?

Just as with electric fields, gamma radiation is not deflected by magnetic fields. When alpha and beta particles move in magnetic fields they experience a deflecting force – provided their motion is not parallel to the field.

Does a moving magnetic field create an electric field?

Yes, it does. A varying magnetic field with time induced an electric field and a electric currentent is generated. This is is known as electromagnetic induction called Faraday Law. However, if the magnetic field is static then it will not be generated a electric field nor current.