3.1.1 Electromagnet
3.1.2 Factors That Affect the Strength of an Electromagnet
3.1.3 Magnetic Field (Experiment)
3.1.4 Simple Electromagnet (Experiment)
3.2 Understanding the force on a current-carrying conductor in a magnetic field
3.2.1 Current-carrying Conductor in a Magnetic Field
3.2.2 Current-carrying Coil in a Magnetic Field
3.2.3 Direct Current Motor Analysing Electromagnetic
3.2.3 Catapult Force and Simple Motor (Experiment)