Additional concepts needed for the complete description of an electrical circuit—such as potential difference—are introduced in this program. The analogy of a ski lift and skiers is used to demonstrate changes in electrical potential energy. Finally, the unit for potential difference, the volt, is explained. (10 minutes)

Tell a Friend! Your Name: Your Email: Your Friend's Email: Your Message: We respect your privacy and will not use your friend's address without permission. Item#: FMK3553

Part of the Series : Electricity

VHS	$49.95
DVD	$49.95

Prices include public performance rights.
Not available to Home Video, Dealer and Fulfillment Dealer customers. Only available in the US.

		Current Electricity The program examines how a flow of electric charge is harnessed when an electrostatically charged object is grounded. A dry cell, or "battery," is introduced as a source of current electricity. The concepts of complete circuits, their energy conversi...(more details)		VHS $49.95 DVD $49.95
		Magnetism and Electron Flow This program introduces the left-hand rule for predicting the relationship between the direction of the magnetic field and the direction of flow in a conductor, and demonstrates the extended magnetic field surrounding a helix. (10 minutes)(more details)		VHS $49.95 DVD $49.95
		Resistance Focusing on a simple circuit, the last program introduces the concept of resistance, or relative differences in conductivity, which is explained in terms of varying numbers of free electrons and pathways for electron flow. The program concludes with ...(more details)		VHS $49.95 DVD $49.95
		Conductors and Insulators This introductory program establishes some of the fundamental principles of electrostatics, such as negative and positive charges. Illustrations of the electron flow in charged particles at the atomic level show the difference between conductors and ...(more details)		VHS $49.95 DVD $49.95
		Charging by Induction A review of the concepts of charging by contact and discharging by grounding illustrates how a charged rod affects an electroscope. One application of charging by induction is demonstrated with a simulation of the action of lightning during a thunder...(more details)		VHS $49.95 DVD $49.95

See additional titles in Engineering Technology | Physics