Question

Why galvanometer is called dead_beat

Answer 1

Answer:

When current is passed through a galvanometer, the coil oscillates about its mean position before coming to rest. To bring the coil to rest immediately, the coil is wound on a metallic frame. ... Since the oscillations of the coil die out instantaneously, the galvanometer is called dead beat galvanometer.

Answer 2

Now, when the coil oscillates, eddy currents are set up in a metallic frame, which opposes further oscillations of the coil. This inturn enables the coil to attain its equilibrium position almost instantly. Since the oscillations of the coil die out instantaneously, the galvanometer is called dead beat galvanometer

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