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Magnetic force on a charge is the force exerted on a charged particle when it moves through a magnetic field. This force is perpendicular to both the velocity of the particle and the direction of the magnetic field.
The magnitude of magnetic force on a charge can be calculated using the formula F = qvBsinθ, where q is the charge of the particle, v is its velocity, B is the strength of the magnetic field, and θ is the angle between the velocity and the magnetic field.
If the charge is negative, the direction of the magnetic force will be opposite to the direction of the force on a positive charge. This means that the force will be in the opposite direction to the direction of the velocity of the particle.
Increasing the strength of a magnetic field will increase the magnitude of the magnetic force on a charge, as long as the other variables (charge, velocity, and angle) remain constant. This means that the charged particle will experience a stronger force and may change its path or speed as a result.
Magnetic force on a charge is used in many different technologies, such as electric motors, generators, particle accelerators, and magnetic resonance imaging (MRI) machines. It is also responsible for the behavior of charged particles in Earth's magnetic field, which is crucial for compasses and navigation systems.
