Force on Moving Charge

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What is the force experienced by a moving charge in a magnetic field?

The force is called the Lorentz force and is given by F = q(v × B).

What are the factors that influence the magnitude of force on a moving charge?

The magnitude is influenced by the charge magnitude, velocity of the charge, and the strength of the magnetic field.

In which direction does the force act on a moving charge in a magnetic field?

It acts perpendicular to both the velocity of the charge and the magnetic field.

What is the formula for calculating magnetic force on a moving charge?

F = q(v × B), where F is the force, q is the charge, v is the velocity, and B is the magnetic field.

What happens to the path of a charge moving perpendicular to a uniform magnetic field?

The charge moves in a circular path.

What is the role of charge polarity on the direction of force in a magnetic field?

Positive charges follow the right-hand rule, while negative charges follow the left-hand rule.

What happens to a moving charge parallel to the magnetic field?

It experiences no magnetic force and continues in a straight line.

What is the effect of velocity direction on the force magnitude on a moving charge?

Maximum force occurs when velocity is perpendicular to the magnetic field.

How does the speed of the moving charge affect the force?

The magnitude of the force is directly proportional to the speed.

Can a magnetic field do work on a moving charge?

No, a magnetic force does no work on a moving charge.

What occurs to a positively charged particle when entering a magnetic field at an angle?

It follows a helical path.

What is the significance of the right-hand rule in magnetic force?

It helps determine magnetic force direction on a positive moving charge.

What is the effect on the path when a charge moves at a high velocity in a strong magnetic field?

The charge will move in a smaller circle due to increased centripetal force.

What happens to the kinetic energy of a charge moving in a magnetic field?

It remains constant because the magnetic force does no work.

What components of force are present in the Lorentz force?

It has both electric (qE) and magnetic (qvB) components.

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