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SCIENCE12 Physics ATAR: Electric fields

Electric field

An electric field is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them.

Source: Wikipedia, Electric field, 2022, URL: https://en.wikipedia.org/wiki/Electric_field

Click on the picture to read more about electric fields.

Source: EBSCO, Jordan, D. R. (2022). Electric field. Salem Press Encyclopedia of Science., URL: https://search.ebscohost.com/login.aspx?direct=true&AuthType=ip,sso&db=tol&AN=87321952&custid=ns126408

Electric field distributions

Electric field

Click on picture for link to summary of electric fields.

Electric field

Source: Hyperphysics, n.d., URL: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html

Useful links

What's the difference between electric field, voltage and current? 

Source: Wired, 2021, URL: https://www.wired.com/story/how-you-define-electric-field-voltage-and-current/

ClickView - Electric Fields, EM Fields, Motor Effect

Electric Fields, EM Fields, Motor Effect

This programme looks at how magnetism and electricity are linked. Experiments are conducted to create an electrostatic field, an electromagnetic field and a solenoid. It also looks at magnetic properties of atoms, deflection of moving charges, how a traditional television screen works, how a loudspeaker works, interaction of magnetic fields and the creation of a simple electric motor.

Source: ClickView, Classroom video, 1992, Rated E, Duration 28:53, URL: https://online.clickview.com.au/libraries/videos/3715281/part-1-electric-fields-em-fields-motor-effect

Work = Vq

The volt and W - Vq

This video introduces the volt (the unit of potential difference) and how to derive W=VQ for A Level Physics.

Source: YouTube, 2015, Duration 2:20, URL: https://svacs.libapps.com/libguides/admin_c.php?g=939950&p=6866467

EMF and p.d.

Click on this link to see the full-screen slideshow.

Define potential difference (p.d.); select and use the equation W = VQ; define the volt; describe how a voltmeter may be used to determine the p.d. across a component; define electromotive force (e.m.f.) of a source such as a cell or a power supply; describe the difference between e.m.f. and p.d. in terms of energy transfer.

Source: SlidePlayer, n.d., URL: https://slideplayer.com/slide/6541132/