# Velocity & Force on a Moving Charge in Magnetic Field

1. Apr 2, 2005

### Soaring Crane

Are there components of the velocity that cannot be determined by measuring the force if one looks at the formula F = q*B*v?

2. Apr 2, 2005

### xanthym

For non-relativistic cases, the vector form of that equation provides all info concerning the force exerted on a moving charge by a magnetic field:
$$:\qquad \underline{F} \ = \ q\underline{v}\times \underline{B}$$

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Last edited: Apr 2, 2005