Coil capacitance change?

Discussion in 'General Electronics Chat' started by electronice123, Nov 1, 2014.

  1. electronice123

    Thread Starter Senior Member

    Oct 10, 2008
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    0
    So, the other day I was playing around with some coils.

    As I was measuring the coil capacitance I noticed when I placed my hand near the coil the capacitance actually increased by several pF, hen when I moved my hand away it decreased by the same amount...why is this?
     
  2. pwdixon

    Member

    Oct 11, 2012
    488
    56
    How were you measuring coil capacitance?
     
  3. electronice123

    Thread Starter Senior Member

    Oct 10, 2008
    302
    0
    With a high freq capacitance meter....Which I know is not typically how you measure capacitance of a coil, but the interesting this is that it was very close to what was calculated.
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,797
    1,103
    Body capacitance in parallel with coil capacitance?
     
    electronice123 likes this.
  5. BR-549

    Well-Known Member

    Sep 22, 2013
    1,987
    388
    Permittivity ε. Your hand has more permittivity than the air.
     
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