Electricity and Magnetism

Demonstration: a shuttling ping-pong ball serves as a model of ions moving in an electric field.

Practical Activity 14-16

This episode introduces fields, field lines and equipotentials in the context of electric fields. Much of this is revision...

Lesson 16-19

The electrostatic potential at a point is often defined as the ratio between the work done in bringing a test charge from...

Glossary Definition 16-19

Giant Van de Graaff: The world’s largest Van de Graaff generator is housed in Boston’s Museum of Science and has two 4.5 m...

Stories from Physics 11-14 14-16

A curious dispute between Benjamin Franklin and King George III over the shape of lightning conductors demonstrates the...

Stories from Physics 11-14 14-16

During the eighteenth century, a craze for electrical demonstrations sprang up and itinerant lecturers toured fashionable...

Stories from Physics 11-14 14-16

Battery bounce: The anecdotal observation that alkaline batteries that are low on charge bounce higher than fully charged ones...

Stories from Physics 11-14 14-16

Electric extinguishers: It is not uncommon for a user to receive a small shock when they touch a grounded conductor after...

Stories from Physics 11-14 14-16

A 1966 report in The Journal of the American Society of Anesthesiologists described a case of an explosion caused by an...

Stories from Physics 11-14 14-16