Physics Learning Path
High School (11–12) Physics
Explore structured physics courses, solved problems, simulations and Python activities.
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AC Voltage and Simple AC Circuits
StemPy LabA voltage that changes with time. Peak and rms values, an AC voltage across a resistor, an inductor and a capacitor, reactance, and phasors that show the phase between voltage and current.
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Series LCR Circuits and Resonance
The three parts together. The series LCR circuit, impedance and phase, resonance and the quality factor, average power in an AC circuit and the power factor.
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Transformers and LC Oscillations
Moving AC energy about. The transformer and its losses, power transmission over long lines, and the oscillations of charge in an LC circuit compared with a spring and a mass.
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Faraday's Law and Lenz's Law
How a changing magnetic field makes an emf. Magnetic flux, Faraday's laws of induction, Lenz's law and conservation of energy, and the emf in a rod moving through a field.
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Eddy Currents and Inductance
Induction inside conductors and coils. Eddy currents and their uses, self-induction and the inductance of a solenoid, mutual induction, and the energy stored in an inductor.
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Generators and Induction Problems
Putting induction to work. The AC generator, a coil turning in a field, rods and frames moving in fields with resistors and capacitors, and the growth and decay of current in an LR circuit.
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Magnetic Force on Charges and Currents
The force a magnetic field puts on moving charges and on wires. The Lorentz force, circular and helical paths, motion in combined electric and magnetic fields, the cyclotron, and the force on a current-carrying wire.
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Biot-Savart and Ampere's Circuital Law
How currents make fields. The Biot-Savart law, the field of a long wire, a circular loop and its axis, Ampere's circuital law, solenoids and toroids, and the force between two parallel currents.
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Loops, Galvanometers and Magnetism of Matter
A current loop as a tiny magnet, and real magnets. Torque on a loop and magnetic moment, the moving-coil galvanometer and its conversion to an ammeter and a voltmeter, bar magnets, the Earth's field, and para-, dia- and ferromagnetism.
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Electric Potential and Equipotentials
Energy of a charge in an electric field. Potential and potential difference, the potential of a point charge, a dipole and a group of charges, equipotential surfaces and how they relate to the field.
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Conductors, Dielectrics and Capacitors
How materials respond to an electric field. Conductors and shielding, dielectrics and polarisation, the capacitor, capacitance, the parallel-plate capacitor and the effect of a dielectric slab.
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Combining Capacitors and Stored Energy
Capacitors together and the energy they hold. Series and parallel combinations, energy stored in a charged capacitor, and what happens to charge and energy when capacitors are joined or a battery stays connected.
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