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Saturday, 5 January 2013

Dead beat galvanometer


Dead beat galvanometer
When current is passed through a galvanometer, the coil oscillates about its mean position before comes to rest. To bring the coil to rest immediately, the coil is wound on a metallic frame. 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

12 comments:

  1. Good explanation........ Short and efficient. Bravo

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  2. nice description according to the matter.. keep up the good work

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  3. short and sweet

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  4. Very good explanation indeed ✌✌

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  5. Diagram would have been useful

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  6. Gd one
    Please define magnetic field in short jst like this

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  7. Diagram would clarify the topic more

    ReplyDelete