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FunctionThis galvanometer was intended for classroom use. An astatic galvanometer is a sensitive instrument that measures small current displacements. When an electric current passes through a wire coil, it induces a magnetic field that causes the coil to rotate in proportion to the current deflections, twisting a suspended magnet. The current deflections can be detected using a scale.
ProvenanceFrom the Department of Physics, Harvard University, 11/19/1956.