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how to find the applied voltage?

Discussion in 'Electronics Homework Help' started by charmcaster.engg, Jan 19, 2015.

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  1. charmcaster.engg

    charmcaster.engg

    79
    1
    Mar 20, 2014
    In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is?
     
  2. charmcaster.engg

    charmcaster.engg

    79
    1
    Mar 20, 2014
    RC series. Therefore I calculated it as 20V+40V=60V. But the answer is 45V.
     
  3. davenn

    davenn Moderator

    13,865
    1,956
    Sep 5, 2009
    show us your calculations and we can see where you may have gone wrong
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

    11,653
    2,694
    Nov 17, 2011
    You'll have to take into account the phase shift, see your other threads.
     
  5. charmcaster.engg

    charmcaster.engg

    79
    1
    Mar 20, 2014
    I tried but I did not get it. Can you give me the formula?
     
  6. Harald Kapp

    Harald Kapp Moderator Moderator

    11,653
    2,694
    Nov 17, 2011
    How did you try? Show us your own efforts, please. We're not doing your homework.
     
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