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Electric circuit

  1. Apr 2, 2013 #1
    1. The problem statement, all variables and given/known data

    A battery has an emf of 24 V and an internal resistance of 0.25 ohm is being charged at a rate of 24 A. What is the voltage required to do this?

    2. Relevant equations

    V(terminal) = emf +/- Ir

    3. The attempt at a solution

    Since the battery is getting charged that means we use the V= emf + Ir

    V = 24 + (24)(0.25) = 30V

    Is this correct?
     
  2. jcsd
  3. Apr 2, 2013 #2

    SammyS

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    Yes.
     
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