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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).

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Details: Written by Coco Lee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 15 February 2024; Created: 15 February 2024; Last Updated: 15 February 2024; Hits: 5014

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 14 August 2023; Created: 14 August 2023; Last Updated: 15 August 2023; Hits: 4291

eField

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 14 August 2023; Created: 14 August 2023; Last Updated: 09 October 2023; Hits: 3521

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 14 August 2023; Created: 14 August 2023; Last Updated: 09 October 2023; Hits: 3863

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 31 December 2021; Created: 31 December 2021; Last Updated: 12 April 2025; Hits: 7193

eField

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 02 March 2025; Hits: 14108

eField

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 23 February 2025; Hits: 6536

eField

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 11 May 2016; Created: 11 May 2016; Last Updated: 30 January 2025; Hits: 4643

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 12 November 2015; Created: 12 November 2015; Last Updated: 03 January 2025; Hits: 14255

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 01 Electric Field; Published: 06 November 2015; Created: 06 November 2015; Last Updated: 03 January 2025; Hits: 14413

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Details: Written by Loo Kang Wee; Parent Category: 02 Static Electricity; Category: 01 Electromagnetism; Published: 31 December 2025; Created: 31 December 2025; Last Updated: 31 December 2025; Hits: 32

Electromagnetism

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Details: Written by Loo Kang Wee; Parent Category: 02 Static Electricity; Category: 01 Electromagnetism; Published: 11 March 2025; Created: 11 March 2025; Last Updated: 28 March 2025; Hits: 1761

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Details: Written by Siti; Parent Category: 02 Static Electricity; Category: 01 Electromagnetism; Published: 14 July 2020; Created: 14 July 2020; Last Updated: 30 March 2025; Hits: 6022

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Details: Written by Siti; Parent Category: 02 Static Electricity; Category: 01 Electromagnetism; Published: 06 July 2020; Created: 06 July 2020; Last Updated: 30 March 2025; Hits: 10916

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Details: Written by Coco Lee; Parent Category: 02 Static Electricity; Category: 01 Electromagnetism; Published: 24 June 2020; Created: 24 June 2020; Last Updated: 30 March 2025; Hits: 8168

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 03 AC; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 6619

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 03 AC; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 6736

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 03 AC; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 22564

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 03 AC; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 5516

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 03 AC; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 6167

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 04 Current; Published: 21 December 2015; Created: 21 December 2015; Last Updated: 01 January 2025; Hits: 6668

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 04 Current; Published: 20 August 2015; Created: 20 August 2015; Last Updated: 03 January 2025; Hits: 28850

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 7132

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 16 February 2025; Hits: 9501

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 16 February 2025; Hits: 8321

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 16 February 2025; Hits: 5594

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 16 February 2025; Hits: 5612

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 5931

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 5799

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 6497

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 6244

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 14 February 2025; Hits: 10459

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 30 April 2018; Hits: 5025

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 30 April 2018; Created: 30 April 2018; Last Updated: 02 February 2025; Hits: 10334

current
DC

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 26 May 2017; Created: 26 May 2017; Last Updated: 25 January 2025; Hits: 6291

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 26 May 2017; Created: 26 May 2017; Last Updated: 25 January 2025; Hits: 5972

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 05 Circuits; Published: 26 May 2017; Created: 26 May 2017; Last Updated: 25 January 2025; Hits: 10475

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 06 Practical Electricity; Published: 12 September 2019; Created: 12 September 2019; Last Updated: 23 March 2025; Hits: 16662

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 06 Practical Electricity; Published: 30 May 2018; Created: 30 May 2018; Last Updated: 22 March 2025; Hits: 5636

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 06 Practical Electricity; Published: 30 May 2018; Created: 30 May 2018; Last Updated: 22 March 2025; Hits: 5228

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Details: Written by Fremont; Parent Category: 05 Electricity and Magnetism; Category: 06 Practical Electricity; Published: 02 May 2018; Created: 02 May 2018; Last Updated: 16 March 2025; Hits: 5776

Practical Electricity

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 27 January 2025; Created: 27 January 2025; Last Updated: 25 February 2025; Hits: 1349

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 27 January 2025; Created: 27 January 2025; Last Updated: 25 February 2025; Hits: 2325

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Details: Written by Siti; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 13 August 2020; Created: 13 August 2020; Last Updated: 31 March 2025; Hits: 6085

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Details: Written by Siti; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 27 July 2020; Created: 27 July 2020; Last Updated: 31 March 2025; Hits: 9782

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Details: Written by Siti; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 23 July 2020; Created: 23 July 2020; Last Updated: 31 March 2025; Hits: 7443

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Details: Written by Coco Lee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 26 June 2020; Created: 26 June 2020; Last Updated: 30 March 2025; Hits: 13218

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Details: Written by Loo Kang Wee; Parent Category: 05 Electricity and Magnetism; Category: 07 Magnetism; Published: 25 June 2018; Created: 25 June 2018; Last Updated: 22 March 2025; Hits: 5414

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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: 16125

Magnetism

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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: 9078

Breadcrumbs

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