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  1. Electromagnetic Induction: Lenz’s Law (2003)

    Subject
    Physics
    Distribution
    Sale, VHS (PAL, 28 minutes), £29.00

    Explains the self-regulating nature of electric motor speeds and demonstrates the application of Lenz’s Law. Shows how the back EMF of an electrical motor can be determined using measurements and...

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  2. Electromagnetism (2 Parts) (1997 Video)

    Subject
    Physics
    Distribution
    Sale, Videocassette. VHS. col. 29, 25 min., 1998 sale: £35.00 (+VAT +p&p) (part 2)

    2 (1997): Covers: induction; magnet-induced electron flow; solonoids; generators; alternator (single and 3-phase), transformer, Lenz’s law, induction coil, back EMF and eddy currents; Maglev -...

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  3. Manufacturing with Materials Video (1991 Video)

    Subject
    Engineering; Technology
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 57 min., 1994 sale: £95.00 (+VAT +p&p)

    Interviews are interspersed with factory scenes and graphics sequences to investigate the use of materials in a specific commercial product.

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  4. Electromagnetic Induction (1985 Video)

    Subject
    Engineering
    Distribution
    OUT OF DISTRIBUTION, Videocassette. Standard formats. col. 25 min.

    Starts with a series of demonstrations showing the three electromagnetic principles on which the induction motor is based. Then uses models to explain how a linear induction motor works. The new magnetic...

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  5. Mechanisms (1982 Video)

    Subject
    Engineering
    Distribution
    Sale, Videocassette. U-matic, VHS. col. 10 min.

    Describes the operation of 21 different basic mechanisms which are driven from a single motor. These are: gears (spur, level, spiral, epicyclic, worm, rack and pinion), flat and vee belts, roller chain,...

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  6. Skillbank: Electrical Installation (6 Parts)

    Subject
    Engineering; FE
    Distribution
    Sale, VHS (PAL, 20, 19. 24, 15, 23, 21 minutes), £45.00 each

    A series of six videos demonstrating electrical installation skills.

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