Free Charge moving in magnetic field – need to know speed - Question Animation

Charge moving in magnetic field – need to know speed - Question When a charge is moving in a magnetic field it will experience a force. A scientist wants to perform an experiment that involves firing a charged particle through a uniform magnetic field at right angles to the direction of the magnetic field, but first she wants to calculate the force the particle will experience. She knows the magnetic flux density of the magnetic field she will be using, and she knows the charge of the particle, but she still needs to know one more value before she can calculate the force the particle will experience. What other value does she need to know?

Charge moving in magnetic field – need to know speed - Question When a charge is moving in a magnetic field it will experience a force. A scientist wants to perform an experiment that involves firing a charged particle through a uniform magnetic field at right angles to the direction of the magnetic field, but first she wants to calculate the force the particle will experience. She knows the magnetic flux density of the magnetic field she will be using, and she knows the charge of the particle, but she still needs to know one more value before she can calculate the force the particle will experience. What other value does she need to know?