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How real voltmeter works

  1. Apr 10, 2008 #1
    1. The problem statement, all variables and given/known data

    A voltmeter with resistance R_V is connected across the terminals of a battery of emf EMF and internal resistance r. Find the potential difference V_meter measured by the voltmeter.

    2. Relevant equations

    v=IR Vab= Va -Vb

    3. The attempt at a solution

    tried using equations with epsolon.
     
  2. jcsd
  3. Apr 10, 2008 #2
    Just go in a loop around the circuit, and re-arrange for Vf-Vi
     
    Last edited: Apr 10, 2008
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