The Right-Hand Rule is a helpful way to understand magnetic forces. Here’s how it works:

1. Direction of Force: First, point your thumb in the same direction as the electric current ($I$) or the speed of a positive charge.

2. Field Direction: Next, stretch your fingers out in the direction of the magnetic field ($B$).

3. Resulting Force: Finally, your palm shows the direction of the magnetic force ($F_m$) on the charge or wire.

Important Points:

• You can find the force on a charge using this formula:
  $F_m = qvB \sin(\theta)$.
  Here, $\theta$ is the angle between how fast it's going and the magnetic field.

• For a wire that carries an electric current, the force is calculated like this:
  $F_m = BIL \sin(\theta)$.
  In this case, $L$ is the length of the wire in the magnetic field.

This rule makes it easier to visualize how electric currents interact with magnetic fields!