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<p>This article describes an electrochemical cell that uses a potato or lemon as a natural electrolyte, with copper and zinc electrodes, designed for educational purposes. It comprises some experiments encouraging students to understand the relationship between current, voltage, and resistance in electrochemical cells and use them as a learning tool in physical sciences. This experimental setup with a potato also verifies Ohm’s law and the role of internal resistance in electrochemical cells without traditional equipment and highlights the necessity of potato electrochemical cell (PEC) in verifying the electrochemical series. The verification of Oersted’s experiment can also be performed as an extension of utilizing the potato electrochemical cell (PEC).</p>

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Innovative Approaches for Learning Electrical Concepts in Physics

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • Papun Mondal,
  • Sanjoy Kumar Pal,
  • Pradipta Panchadhyayee,
  • Suman Kumar Dash,
  • Subhash Chandra Samanta

摘要

This article describes an electrochemical cell that uses a potato or lemon as a natural electrolyte, with copper and zinc electrodes, designed for educational purposes. It comprises some experiments encouraging students to understand the relationship between current, voltage, and resistance in electrochemical cells and use them as a learning tool in physical sciences. This experimental setup with a potato also verifies Ohm’s law and the role of internal resistance in electrochemical cells without traditional equipment and highlights the necessity of potato electrochemical cell (PEC) in verifying the electrochemical series. The verification of Oersted’s experiment can also be performed as an extension of utilizing the potato electrochemical cell (PEC).