Eddy currents are used in

Options :
  1. electrolysis
  2. making a galvanometer dead beat
  3. electroplating
  4. to increase sensitivity of galvanometer
Answer and Explanation :-

Answer: Option 2

Explanation:

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In the depth a light will grow,A silver shine no shadows know, Like wings unfolding in the sky,That circle 'round a gleaming eye,Turning darkness all away,Even depths will know their day,For every shadow has its end,In light!Life will return again!
-Robert Fanney