Electricity & Magnetism
Magnetism & Induction
Moving charges, magnetic force and induced EMF
5 skills · Last skill is Premium
Magnetism and induction cover the field of a current, magnetic forces, Faraday's law, alternating current and transformers, inductance and LC circuits.
Skills in this topic
Magnetic Field of a Current
Find the field around a straight wire and inside a solenoid, and add the fields of two wires
Magnetic Force
Find the force on a moving charge and on a current-carrying wire in a field
Electromagnetic Induction
Use Faraday's law to get the EMF a changing flux induces in a coil
AC & Transformers
Use rms values and transformer ratios to calculate voltage changes and explain high-voltage transmission
Inductance & LC Circuits
Find the self-induced EMF and stored energy of a coil, its reactance in AC, and the period of an LC circuit
Exam paths that include this topic
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