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Videos tagged with electricy (1)

MIT Physics Demo -- Galvanometer Principle

MIT Physics Demo -- Galvanometer Pr...

MIT Department of Physics Technical Services Group

Added over 6 years ago | 00:00:47 | 49507 views

Two large coils of wire ("Helmoholz coils") are connected to 125V DC power, and produce a uniform magnetic field between the coils. A separate coil is suspended with this field. Switching the polarity of the DC current in the inner co...