Inductor and Capacitor

Discussion in 'General Electronics Chat' started by kiransai, Aug 9, 2013.

  1. kiransai

    Thread Starter New Member

    Aug 9, 2013
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    0
    Dear all,
    Please say that the following sentences are correct
    Inductor opposes change in current by using induced voltage... so it means it is maintaining current constant.
    Similiarly,
    Capacitor opposes change in voltage by using electron flow.... so it means it is maintaining voltage constant...
    So inductor can be used as a current regulator and capacitor can be used as a voltage regulator?????
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,715
    4,788
    Your statements are correct in an overly simplistic view. And inductor does not maintain the current constant, but it imposes a constraint that requires the current to be continuous and tends to oppose changes in current. In order for the current in an inductor to change, there must be a voltage across it -- and if there is a voltage across it, then it means that the current IS changing. Similar observations apply to the case of a capacitor, which imposes the constraint that the voltage be continuous and, again, if the voltage is changing there must be a current and, if there is a current, then the voltage IS changing.
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,087
    3,027
    An inanimate object cannot really "try" to do anything, but I hope you know what I intended. The devices try, but can never succeed.
     
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