resistance in parallel circuits

Discussion in 'Homework Help' started by alexander7, Feb 12, 2010.

  1. alexander7

    Thread Starter New Member

    Oct 11, 2009
    4
    0
    Hello, Im having trouble calculating the totle resistance of the following: 5 15Ω resistors 10 100Ω and two 10Ω resistors are all connected in parallel. what is the totle resistance? Please explain?

    Thanks,
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    1/Rtotal=1/R1+1/R2+1/R3+ ........

    Thus,

    Rtotal=1/[1/R1+1/R2+1/R3+ ........]

    R1,R2,R3 and so on are all the parallel resistors
     
  3. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    If you want to see a few examples of the application of the formulas that mik3 has posted, take a look here.

    hgmjr
     
  4. i_am_the_thorn

    New Member

    Feb 14, 2010
    10
    0
    you can treat 5 15ohm resistances as a single equivalent resistance of 15/5 and so on , if that helps..
     
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