Capacitance of Parallel Plates Overview
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Questions and Answers

What happens to the capacitance of parallel plates if their area is doubled?

  • The capacitance is doubled (correct)
  • The capacitance is halved
  • The capacitance is quadrupled
  • The capacitance remains the same
  • How does the spacing between parallel plates affect capacitance?

  • Capacitance remains constant with spacing
  • Capacitance increases with spacing
  • Capacitance decreases with spacing (correct)
  • Capacitance is not affected by spacing
  • What effect does doubling the charge that a capacitor can hold have on its capacitance?

  • The capacitance quadruples
  • The capacitance remains the same
  • The capacitance is halved
  • The capacitance doubles (correct)
  • How does the dielectric material impact the capacitance of parallel plates?

    <p>It increases capacitance</p> Signup and view all the answers

    Why does the voltage rating of a capacitor depend on frequency?

    <p>Higher frequency increases losses and heating in the capacitor</p> Signup and view all the answers

    What is another name for a voltage variable capacitor?

    <p>Variable capacitance diode</p> Signup and view all the answers

    How does the barrier width variation in a reversed-biased diode impact capacitance?

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

    In a voltage variable capacitor, which material becomes one of the capacitor plates when the diode is reversed biased?

    <p>N-type material</p> Signup and view all the answers

    What happens to the capacitance of a diode-former capacitor when the reversed bias voltage is increased?

    <p>Capacitance decreases</p> Signup and view all the answers

    Why does a diode form a capacitor when reversed biased?

    <p>Barrier width acts as a nonconductor</p> Signup and view all the answers

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