Right-hand rule-1

Definition

Right-hand rule-1 is a mnemonic used to determine the direction of the magnetic force on a positive charge moving in a magnetic field. Point your thumb in the direction of the velocity, your fingers in the direction of the magnetic field, and your palm will point in the direction of the force.

5 Must Know Facts For Your Next Test

1. The right-hand rule-1 is applicable only for positive charges; for negative charges, the force direction is opposite.
2. It helps visualize the relationship between velocity, magnetic field, and force vectors in three-dimensional space.
3. This rule is derived from Fleming's Left-Hand Rule used in electromagnetism.
4. Right-hand rule-1 is essential for solving problems involving Lorentz force $\mathbf{F} = q(\mathbf{v} \times \mathbf{B})$.
5. Understanding this rule is crucial for analyzing particle motion in cyclotrons and other magnetic devices.

Review Questions

• How does right-hand rule-1 determine the direction of magnetic force on a moving charge?
• What would be the direction of the force if an electron (negative charge) moves through a magnetic field using right-hand rule-1?
• Why is right-hand rule-1 important for understanding particle motion in cyclotrons?

Related terms

Magnetic Field: A vector field surrounding magnets and electric currents where magnetic forces are exerted.

Lorentz Force: $\mathbf{F} = q(\mathbf{v} \times \mathbf{B})$, describing the combined electric and magnetic forces on a point charge due to electromagnetic fields.

Cyclotron: A type of particle accelerator that uses perpendicular electric and magnetic fields to accelerate charged particles in circular paths.