The coil of a moving coil galvanometer keeps on oscillating for a long time if it is deflected and released. If the ends of the coil are connected together , the oscillations stop at once . Explain

Dear nikhil,

When a current passes through the galvanometer coil, it experiences a magnetic deflecting torque,     which tends to rotate it from its rest position. As the coil rotates it produces a twist in the suspension     strip. The twist in the strip produces an electric restoring torque. The coil rotates until the elastic     restoring torque due to the strip does not equal and cancels the deflecting magnetic torque, then it     attains equilibrium and stops rotating any furthers.

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