Tec — The Education Consultancy

Topics covered

• The magnetic effect of a steady current, the right-hand rule, and sketching magnetic field lines
• The force on a current-carrying conductor in a magnetic field, and the turning effect (torque) on a current-carrying coil
• The D.C. motor — construction, working principle, and the role of the commutator and brushes
• Electromagnetic induction, Faraday's law, and the factors affecting the magnitude of an induced EMF
• Lenz's law, and its relation to the conservation of energy
• A simple A.C. generator, and mutual induction between two coils
• The transformer — the principle of mutual induction, step-up/step-down transformers, and their role in power transmission