Physics for IGCSE & O level - Magnets And Currents (Section 11 - No. 15)

How can the force on a current-carrying wire in a magnetic field be increased?

Increasing the current

Increasing the strength of the magnetic field

Increasing the length of wire

Reversing the polarity of the magnet

The force on the wire can be increased by increasing current, the strength of the magnetic field, or the length of wire.