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Electric plate has three sections with equal resistivity

  1. Sep 25, 2011 #1
    Physics.jpg
    Electric plate has three sections with equal resistivity. Those resistivities combined parallel - water boils per 6 minutes. How much time it will take to boil the same weight and same initial temperature of the water if we will combine resistivities sections like in A and C

    Thanks very much
     
  2. jcsd
  3. Sep 25, 2011 #2
    Re: Electricity

    If you show your attempt someone can help you.
     
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