Electrical Conductors Quiz
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Questions and Answers

Which material is considered a good conductor of electricity?

  • Wood
  • Metal (correct)
  • Rubber
  • Plastic

    • What happens when wires are attached to the plastic part of a screwdriver?

  • The bulb glows dimmer
  • The bulb flickers
  • The bulb glows brighter
  • The bulb does not glow (correct)

    • What are materials that do not allow electricity to pass through them called?

  • Semiconductors
  • Conductors
  • Insulators (correct)
  • Superconductors

    • What property of metals makes them good conductors of electricity?

    <p>Presence of free electrons</p> Signup and view all the answers

    What is a common characteristic of materials considered for the next generation lithium-ion battery anode?

    <p>Low cost and high theoretical specific capacity</p> Signup and view all the answers

    What is a weakness associated with silicon-based materials for lithium-ion battery anodes?

    <p>Low intrinsic electrical conductivity</p> Signup and view all the answers

    What is the theoretical capacity limit for graphite anodes in their fully lithiated state?

    <p>372 mAh/g</p> Signup and view all the answers

    What is a focus of current research on lithium-ion battery anodes?

    <p>Engineering materials to retain their characteristics and accommodate weaknesses</p> Signup and view all the answers

    What has become popular in many fields including lithium-ion battery research for improving various aspects of battery performance?

    <p>Artificial intelligence and machine learning</p> Signup and view all the answers

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