Dielectrics and Capacitors in Series
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Questions and Answers

What is the relationship between charge and time in a discharging capacitor?

  • Sinusoidal
  • Logarithmic
  • Linear
  • Exponential decay (correct)
  • Why does the equation for discharging a capacitor have a negative sign?

  • Due to an error in calculation
  • Because conventional current is in the opposite direction to electron flow (correct)
  • To make it more complex
  • To confuse students
  • What is the relationship between voltage and time in a discharging capacitor?

  • Linear
  • Spiral
  • Cyclical
  • Exponential growth (correct)
  • In the discharging process, what does 𝑄𝑄0 represent?

    <p>Initial charge</p> Signup and view all the answers

    Which law states that at any time during charging a capacitor, the emf will be equal to the sum of potential differences across the resistor and the capacitor?

    <p>Kirchhoff’s voltage law</p> Signup and view all the answers

    What is the result of integrating when separating variables to find the relationship between charge and time in a discharging capacitor?

    <p>$Q_0/C$</p> Signup and view all the answers

    What is meant by the term 'exponential decay' in discharging capacitors?

    <p>Charge decreases exponentially</p> Signup and view all the answers

    What does $I_0$ represent in the equation for current during discharging?

    <p>Initial current</p> Signup and view all the answers

    What happens to the potential difference across a capacitor with respect to time during charging?

    <p>Decreases exponentially</p> Signup and view all the answers

    What does ln in the equation for charge with respect to time represent?

    <p>Natural logarithm</p> Signup and view all the answers

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