05 Electricity and Magnetism

Electricity & Magnetism. In this section, learners explore the diversity of phenomena related to the fundamental physical property of (electric) charge, which experiences forces when interacting with electric and magnetic fields. There is a close analogy between mass in a gravitational fields and charge in an electric field. Electromagnetic forces can cause the kinds of motion studied in the earlier mechanics topics, and the microscopic behaviour of individual charges is connected to macroscopic property of current in circuit systems. The principle of conservation of energy guides the analysis of circuits containing resistors and e.m.f. sources. In H2 Physics, the consideration of charge storage in capacitors deepens learners’ appreciation of applications in electronics. The mathematics of oscillations and waves prove useful here for describing alternating currents in the electrical grid. In H3 Physics, the laws of electromagnetism are recast in integral form, which emphasises their geometrical nature, and allows characterisation of more complex field patterns. Learners explore the rotational motion of electric and magnetic dipoles, as well as the modification of electromagnetic fields in dielectric and ferromagnetic media, which is crucial for technological applications. In electrical circuits, the analogy with mechanical oscillations is established when inductive components are added to resistive and capacitive components.

Big ideas1. Electrical charge is a property of matter. Electrons can be transferred from one place to another, but cannot be created or destroyed. 2. Electricity is one of the most common means by which we transfer energy; the electrical current (moving charges) brings us energy from power plants when there is a complete (closed) circuit from the power plants to our homes or to industries. 3. In a closed circuit, potential difference, current, and resistance are related; a change in any part of the circuit affects all other parts (almost) instantaneously. By using various electrical components in different arrangements, we are able to set up practical circuits to serve specific purposes. 4. Naturally occurring magnets, as well as man-made magnets, interact with other magnets or magnetic materials. A freely suspended magnet comes to rest pointing in the N-S direction due to its interaction with the Earth’s magnetic field. 5. Electricity and magnetism are related effects that have many applications in everyday life: moving charges (electric current) create magnetic fields; varying magnetic fields create electric fields (electromagnetic induction). 6. complex systems may also be better characterised by statistical averages (e.g. drift velocity, temperature) as these quantities may be more meaningful than the properties and behaviours of individual components (e.g. electron movement in a wire resulting in the current).

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 17 March 2025; Hits: 13303

Magnetism

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 21496

Magnetism

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 11 November 2015; Created: 11 November 2015; Last Updated: 25 February 2025; Hits: 13117

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 11 November 2015; Created: 11 November 2015; Last Updated: 25 February 2025; Hits: 44497

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 20 May 2025; Created: 20 May 2025; Last Updated: 21 May 2025; Hits: 3370

Details: Written by: Coco Lee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 03 July 2020; Created: 03 July 2020; Last Updated: 23 September 2025; Hits: 14586

Details: Written by: Coco Lee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 03 July 2020; Created: 03 July 2020; Last Updated: 28 September 2025; Hits: 54309

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 15 May 2018; Created: 15 May 2018; Last Updated: 22 March 2025; Hits: 9333

Electromagnetism

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 22 March 2025; Hits: 8930

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 22 March 2025; Hits: 5362

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 22 March 2025; Hits: 7737

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 08 May 2023; Hits: 5153

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 22 March 2025; Hits: 9665

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 10 May 2018; Created: 10 May 2018; Last Updated: 22 March 2025; Hits: 6110

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 09 May 2018; Created: 09 May 2018; Last Updated: 22 March 2025; Hits: 6406

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 09 May 2018; Created: 09 May 2018; Last Updated: 22 March 2025; Hits: 5116

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 22 March 2025; Hits: 7196

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 17 March 2025; Hits: 14363

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 17 March 2025; Hits: 18593

Electromagnetism

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 17 March 2025; Hits: 10365

Electromagnetism

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 10909

Electromagnetism

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 22 March 2025; Hits: 6747

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 22 March 2025; Hits: 6365

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 22 March 2025; Hits: 7678

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 22 March 2025; Hits: 6653

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 02 February 2025; Hits: 20506

Electromagnetism

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 15 August 2017; Created: 15 August 2017; Last Updated: 02 February 2025; Hits: 11898

Electromagnetism

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 13 July 2016; Created: 15 June 2016; Last Updated: 18 January 2025; Hits: 24208

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 21 June 2016; Created: 21 June 2016; Last Updated: 18 January 2025; Hits: 24090

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 21 June 2016; Created: 21 June 2016; Last Updated: 18 January 2025; Hits: 9540

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 15 June 2016; Created: 15 June 2016; Last Updated: 18 January 2025; Hits: 25130

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 26 January 2016; Created: 26 January 2016; Last Updated: 18 January 2025; Hits: 15397

Details: Parent Category: 05 Electricity and Magnetism; Category: 08 Electromagnetism; Published: 20 August 2015; Created: 20 August 2015; Last Updated: 18 January 2025; Hits: 22732

Details: Written by: Wei Chiong; Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 23 February 2025; Hits: 11139

Electromagnetic Induction

Details: Written by: Fremont; Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 16 February 2025; Hits: 8113

Details: Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 14 August 2016; Created: 20 August 2015; Last Updated: 16 December 2024; Hits: 29381

Details: Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 07 August 2016; Created: 20 August 2015; Last Updated: 18 January 2025; Hits: 26888

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 13 July 2016; Created: 15 June 2016; Last Updated: 18 January 2025; Hits: 9323

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 26 January 2016; Created: 26 January 2016; Last Updated: 18 January 2025; Hits: 10995

Details: Written by: Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 09 Electromagnetic Induction; Published: 13 December 2015; Created: 13 December 2015; Last Updated: 18 January 2025; Hits: 18813

05 Electricity and Magnetism

Subcategories

01 Electric Field Article Count: 10

02 Static Electricity Article Count: 5

01 Electromagnetism Article Count: 5

03 AC Article Count: 5

04 Current Article Count: 2

05 Circuits Article Count: 15

06 Practical Electricity Article Count: 4

07 Magnetism Article Count: 13

08 Electromagnetism Article Count: 29

09 Electromagnetic Induction Article Count: 10

10 Capacitors and Inductors Article Count: 1