This Association for Science Education (ASE) publication about electrical testing was developed in association with a company called Square D Ltd in Swindon, Wiltshire. At the time of publication Square D was a major manufacturer of electrical equipment, operating more...

In these experiments students make and test circuits to investigate a range of effects:

Section A: Transforming a d.c. power supply
*Experiment A(i): Step-up voltage regulator
*Experiment A(ii): Step-down voltage regulator
*Experiment A(iii): High current step-down regulator
*...

This Association for Science Education (ASE) publication about the physics of fluid flow was developed in association with the Dowty Group,. At the time, the company had four divisions that were Aerospace and Defence, Mining, Industrial, and Electronics. The Group...

This Association for Science Education (ASE) publication about optical fibres was developed in association with the General Electric Company (GEC). At the time of publication GEC was the largest manufacturer of electrical and electronic products in the United Kingdom,...

From the Institute of Physics, this learning episode shows that charge carriers in good conductors usually move very slowly. It illustrates the derivation and use of the equation I = nAvq.

A range of activities include:
• viewing the movement of permanganate ions in an electric field
•...

From the Institute of Physics, this learning episode provides a quantitative definition for resistance (R = V / I) which reinforces the qualitative notion that more resistance means less current. It looks at Ohm’s law, describing that this is not the same thing as the definition of resistance.

Activities...

Produced by the Institute of Physics, in this practical investigation students measure the current and voltage characteristics for several components and identify ohmic and non-ohmic behaviour. Students determine the V-I characteristics for: • a carbon resistor • semiconductor diode • a filament lamp In addition,...

In this learning episode, from the Institute of Physics, students derive the equation relating electromotive force (emf), terminal potential difference, current and internal resistance. They then tackle questions about the internal resistance of a power supply.

This demonstration or student practical activity, from the Institute of Physics, helps students learn to use an oscilloscope to measure voltages. It helps students to understand the use of a cathode ray oscilloscope by showing:
• how the oscilloscope plots a graph...

Produced by the Institute of Physics, this learning episode helps students to distinguish alternating from direct currents before revising why alternating current (ac) is so important.

The range of activities include...

In this learning episode from the Institute of Physics, students are introduced to capacitors. Through practical investigations, students look at their charge and discharge process.

The activities include:
•...

This learning episode, from the Institute of Physics, helps students understand how capacitors charge and the concept of capacitance. Students investigate the relationship between charge and potential difference across a capacitor.

Produced by the Institute of Physics, this learning episode looks at the energy stored in a capacitor. Students undertake a practical investigation to look at the energy stored and how this varies with potential difference and capacitance.

In this learning episode from the Institute of Physics, students investigate and characterise the exponential discharge of a capacitor.

Activities include:
• looking at exponential discharge
•...

This learning episode from the Institute of Physics, uses discussion and experimental work to help students investigate the application of moments beyond the simple 'see-saw' model.

Activities lead to an application of moments to general equilibrium situations.

Students look at:
* moments and...