To calculate the magnetic force on a current-carrying wire in a magnetic field, you can use the formula:
\[
F = I \cdot L \cdot B \cdot \sin(\theta)
\]
where:
- \( F \) is the magnetic force,
- \( I \) is the current flowing through the wire,
- \( L \) is the length of the wire in the magnetic field,
- \( B \) is the magnetic field strength, and
- \( \theta \) is the angle between the wire and the magnetic field.
If the wire section PQRS is