Motors and generators

• Magnetic filed strength increases
• current flowing through conductor increases
• length of conductor in field increases
• angle between field and current increases
• number of lengths of wire in the field increases

• Repel if currents in opposite directions
• attract if currents in same directions

the turning action of two equal forces acting in opposite directions on opposite sides of a coil (also known as the moment of a force)

A current carrying conductor in a magnetic field experiences a force. the motor effect occurs due to the interaction of the external field with the field created by the current