Countries: CA

Rotates a loop of wire in a magnetic field, returns to basic principles to explain the observations, and then compares generators to motors. Analyses the nature of alternating current and computes the effective values of sample circuits.

Investigates the self-regulating nature of electric-motor speeds and uses Lenz’s law as a method of explaining the event. The Meissner effect and induction furnaces are compared and contrasted in terms of eddy currents and energy conversions.

Ionic crystals provide a real-life application of quantifying electrostatic forces between point chages. Large-sized models are used to facilitate advance Coulomb’s law problem solving, using vectors and vector components.

Explains the operating principles of the transformer and gathers empirical evidence to deduce the relationships among the important variables at work. Assesses the benefits of high voltage transmission and explains how technology favoured the use of AC.

The concept of field and field strength around point charges is developed from the parallel ideas in gravitation. Investigates the shape of electric fields around point charges and quantifies field strengths and forces.

Focuses on the historic development (Oersted, Ampere, Faraday, Maxwell) of electromagnetic theory. Mini-labs demonstrate the wave-like behaviour of EMR and a research project investigates the constituents of the electromagnetic spectrum.

Defines electric potential and electric potential difference. A ride on a water slide is used to compare the effects of potential difference on charged particles. Explains lightning and particle acceleration using the concept of electrical potential.

Emphasis is placed on how radio transmission and reception occur through a studio model of a transmitter and receiver and interviews with experts. Explores the roles of different parts of the EMR spectrum in telecommunications.

Investigates the shape of electric fields between and around plates, and reveals the uniformity of such fields. Analyses the behaviour of moving electric charges in uniform fields quantitatively, using vector sum calculations.

Explains that different parts of the electromagnetic spectrum are used to explore the universe. Explores the value of satellite-observing platforms, possible solutions to ground-based viewing, and images of an object obtained using different wavelengths.