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D1SSECTIBLE TRANSFORMER Coil for Transformer, 100 turns (0354)

For demonstration of basic concepts associated with electromagnetic induction such as AC transformers, induced currents and their effects etc. Also call Demountable Transformer. Comprises a U-Core and I-Core of rectangular cross section, made from high grade laminations to minimize the induction losses, with size of the I-core suitable to sit completely over U-core to provide a continuous rectangular annular laminated block. Arms of the U-core takes various coils included for different experiments. All coils included are wound from enameled copper wire on insulated rectangular plastic bobbin and are totally covered to prevent any accidental direct contact with the winding. 4mm socket terminals provided at the front for electrical connections except for 600 turns coil that operates on AC mains and is provided with a two core flexible lead. With number of turns of coil clearly printed on front and direction of winding indicated on top. The bobbins have rectangular hole at their center matching the cross-section of U-'core arms to sit on them with negligible air gap for minimizing induction losses. Also included is a pair of soft iron pole pieces to sit on top of U-core arms. One end of each pole piece if flat so that the pole pieces in situ provide a narrow gap with full cross-sectional area, while the other end in form of truncated cone providing narrow concentrated field between the poles. Following components are included in the apparatus. ? Laminated U-Core - 1 No. ? Laminated I-Core - 1 No. ? Soft iron Pole Pieces - 2 Nos. ? One coil of 6000 turns, maximum current 0.2A with one intermediary output corresponding to 2000 turns ? One coil of 600 turns, maximum current 0.25A. Mainly to create the transformer primary. Provided with mains power supply ? One coil of 1200 turns, maximum current 1.25A, with intermediary outputs corresponding to 400 and 800 turns ? One coil of 72 turns maximum current 12A, with intermediary outputs corresponding to 6,30,54 and 66 turns