Lessons › Unit 5
Electricity and Magnetism
Charge, fields, circuits, motors, induction and generators. 19 lessons.
5.1 Electrostatics
5.1.1ChargeDescribe charge, conductors and insulators.5.1.2Coulomb's LawUse Coulomb's law to find the force between two charges.5.1.3Electric FieldDefine electric field.5.1.4VoltageDefine electric potential difference.
5.2 Circuits
5.2.1Ohm's LawDefine current, voltage and resistance.5.2.2Series and Parallel CircuitsCalculate equivalent resistance in series and parallel.5.2.3Electrical PowerCalculate power using P = VI.
5.3 Electromagnetism
5.3.1Moving Charges in Electric FieldsDescribe the path of a charge in a uniform electric field.5.3.2Ampere's LawDescribe the magnetic field around a current-carrying wire.5.3.3Charge in Magnetic FieldsCalculate the force on a moving charge in a magnetic field.5.3.4Motor EffectCalculate the force on a current-carrying wire in a magnetic field.5.3.5DC MotorDescribe the parts of a DC motor.
5.4 Electromagnetic Induction
5.4.1Magnetic FluxDefine magnetic flux.5.4.2Faraday's LawState Faraday's law of induction.5.4.3Lenz's LawState Lenz's law.5.4.4Back EMFExplain how a motor generates a back emf.5.4.5GeneratorsDescribe how a generator produces an alternating emf.5.4.6TransformersExplain how a transformer works.5.4.7Induction MotorsExplain how a rotating magnetic field turns a rotor.