Types of Battery Cells: Round and Flat Cells
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Questions and Answers

What is the rated voltage of mercury oxide coin cells?

  • 3.5V
  • 2.8V
  • 1.55V
  • 1.35V (correct)
  • Which type of cells have a constant internal resistance and voltage throughout the discharging process?

  • Lithium coin cells
  • Nickel Cadmium Batteries
  • Mercury oxide coin cells (correct)
  • Silver oxide coin cells
  • What is a characteristic feature of silver oxide coin cells?

  • Used for pacemakers
  • Rated voltage of 3.5V
  • Low energy density
  • High voltage depression (correct)
  • Which type of cell has high energy density, a high lifespan, and is used for pacemakers and cameras?

    <p>Lithium coin cells</p> Signup and view all the answers

    What type of batteries are used for pacemakers, cameras, and video cameras?

    <p>Lithium silver chromate cells</p> Signup and view all the answers

    Which type of batteries generate gases during the charging process?

    <p>Nickel Cadmium Batteries</p> Signup and view all the answers

    Why is the amount of current that can be tapped smaller when discharging a battery in a shorter time period with higher current?

    <p>Chemical conversion of the plates only takes place at the surface, not inside.</p> Signup and view all the answers

    What are the positive pole plates made of in Nickel-Cadmium batteries?

    <p>Fine punched nickel-plated steel tubes filled with nickel or graphite powder.</p> Signup and view all the answers

    What is the electrolyte used in Nickel-Cadmium batteries and how is it prepared?

    <p>Lime potash diluted with chemically pure water.</p> Signup and view all the answers

    How does the density of the electrolyte change during battery operation?

    <p>It remains nearly constant regardless of the charge condition.</p> Signup and view all the answers

    What is the composition of the filling in positive pole plates of Nickel-Cadmium batteries?

    <p>Nickel compound with finely spread nickel or graphite powder.</p> Signup and view all the answers

    Why do aircraft commonly use Nickel-Cadmium batteries?

    <p>Nickel-Cadmium batteries offer reliable performance in critical aircraft systems.</p> Signup and view all the answers

    What is the primary reason why primary cells cannot be reused?

    <p>They cannot be charged</p> Signup and view all the answers

    Which type of cell is known for its reversibility in electrochemical processes?

    <p>Nickel-cadmium cells</p> Signup and view all the answers

    In which type of batteries is the construction and basic chemical action discussed in the provided text?

    <p>Lead batteries</p> Signup and view all the answers

    What is the characteristic of secondary cells that allows them to be recharged and reused?

    <p>Their electrochemical processes are reversible</p> Signup and view all the answers

    Which type of battery must only be charged using DC, as mentioned in the text?

    <p>Lead batteries</p> Signup and view all the answers

    What factor determines the capacity of galvanic cells?

    <p>The amount of charge they can supply over a period</p> Signup and view all the answers

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