Conductors and Insulators Quiz
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Questions and Answers

What is the measure of the ease at which an electric charge moves through a material?

  • Resistance
  • Current
  • Voltage
  • Conductivity (correct)
  • Which type of material allows the flow of charges through them?

  • Insulators
  • Semiconductors
  • Conductors (correct)
  • Doping materials
  • What refers to atoms of different elements added in small amounts to pure semiconductors to improve conductivity?

  • Insulating
  • Charging
  • Superconducting
  • Doping (correct)
  • What type of material resists the flow of charges?

    <p>Insulators</p> Signup and view all the answers

    What is the function of lightning rods on buildings?

    <p>Attract lightning to protect the building</p> Signup and view all the answers

    At what temperature do superconductors exhibit no resistance to the flow of charges?

    <p>-203 K</p> Signup and view all the answers

    What is the unit used to measure electric charge?

    <p>Coulomb</p> Signup and view all the answers

    How can objects become electrically charged?

    <p>By gaining or losing electrons</p> Signup and view all the answers

    What did Queen Elizabeth I of England call the substances that possess the ability to attract when rubbed against other substances?

    <p>Electrics</p> Signup and view all the answers

    Which study focuses on all phenomena associated with electric charges at rest?

    <p>Electrostatics</p> Signup and view all the answers

    What happens to an object after being rubbed against another object in terms of its ability to attract small pieces of matter?

    <p>It gains the ability to attract</p> Signup and view all the answers

    Who found out that many substances possess the ability to attract when rubbed against other substances, similar to amber?

    <p>Queen Elizabeth I of England</p> Signup and view all the answers

    What is the total charge on the three spheres before touching each other?

    <p>+20.0 C</p> Signup and view all the answers

    After touching and redistributing charges, what is the final charge on sphere A assuming they are identical?

    <p>+10.0 C</p> Signup and view all the answers

    In the scenario where rA = rB = 2rC, what is the final charge on sphere C?

    <p>-6.0 C</p> Signup and view all the answers

    How many successive contacts with an uncharged identical sphere are needed to reduce the charge of sphere A to 1/32 of its initial charge?

    <p>5 contacts</p> Signup and view all the answers

    What charging method is demonstrated when spheres A and B touched each other and then separated?

    <p>Conduction</p> Signup and view all the answers

    Which sphere serves as a conductor in the scenario described?

    <p>Sphere A</p> Signup and view all the answers

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