Class 12 Physics
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Questions and Answers

What is a galvanic cell?

  • A device that generates electricity using solar energy
  • A device that generates electricity using wind energy
  • A device that generates electricity using nuclear energy
  • A device that generates electricity using chemical energy (correct)

    • What is the function of electrodes in a cell?

  • Stores the chemical energy
  • Conductors through which current can pass (correct)
  • Generates the electrolyte
  • Insulators that prevent current flow

    • What is the role of electrolyte in a galvanic cell?

  • Stores the chemical energy
  • Prevents the flow of current
  • Conducts electricity due to the presence of free ions (correct)
  • Generates electricity

    • What is the direction of current flow in a galvanic cell?

    <p>From Zn electrode to Cu electrode</p> Signup and view all the answers

    How is EMF defined in a cell?

    <p>The potential difference between electrodes when there is no current in the cell</p> Signup and view all the answers

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