Seeing Is Believing: Demonstrating the RC Time Constant Visually

• M. Qasim Syed ^[1] ; Ian Lovat ^[1]
  1. [1] Mount Royal University

     Mount Royal University

     Canadá

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 58, Nº. 6, 2020, págs. 402-404
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • RC circuits are ubiquitous. They are the most common entities in modern electronics; introductory physics courses typically include a chapter and a lab on RC circuits. Several papers dealing with many aspects of RC circuits have been published in The Physics Teacher and other educational journals. An RC circuit contains a series combination of a resistor and a capacitor (with resistance and capacitance R and C, respectively). In this circuit the capacitor stores electric charge, and the resistor controls the rate of charging or discharging. The potential difference (ΔV) across a discharging capacitor is given by the following exponential function of time (t)