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State the principle of working of a movingcoil galvanometer (suspended-coil type). |
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Answer» Principle : A current-carrying coil suspended in a magnetic field experiences a torque which rotates the plane of the coil and tends to maximize the magnetic flux through the coil. The deflection of the coil in a moving-coil galvanometer is linearly related to the current through it and, therefore, can be used to measure current in terms of the deflection. |
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