Electrostatic Charging: Triboelectric Series
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Questions and Answers

What is the result of bringing a negatively charged object close to a neutral metal object?

  • The electrons are attracted to the negatively charged object.
  • No charges are transferred between the objects.
  • The electrons are repelled on the other side away from the negatively charged object. (correct)
  • The neutral metal object becomes positively charged.

    • What is the method of charging that occurs when two objects are in physical contact with each other?

  • Charging by induction
  • Charging by friction
  • Electrostatic charging
  • Charging by conduction (correct)

    • What is the purpose of the negatively charged rod in Figure 1.1.7?

  • To attract positive charges in the metal sphere
  • To induce positive charges in the side of the sphere near the rod (correct)
  • To repel negative charges in the metal sphere
  • To transfer negative charges to the metal sphere

    • What is the result of charging an object by conduction?

    <p>The object becomes negatively charged. (B)</p> Signup and view all the answers

    What is the principle behind charging by induction?

    <p>The separation of charges within an object due to an external influence. (B)</p> Signup and view all the answers

    What is a characteristic of charging by friction?

    <p>It involves the transfer of charges between two objects. (C)</p> Signup and view all the answers

    What determines the tendency of materials to acquire charge when rubbed against each other?

    <p>Electron affinity (A)</p> Signup and view all the answers

    What is the ranking of materials based on their tendency to acquire charge called?

    <p>Triboelectric series (A)</p> Signup and view all the answers

    What is the method of charging where a charged object is in contact with a neutral object?

    <p>Charging by conduction (D)</p> Signup and view all the answers

    Why does plastic become negatively charged when rubbed with fur?

    <p>Because plastic has a higher electron affinity than fur (C)</p> Signup and view all the answers

    What is the result of charging by conduction between a negatively charged conductor and an uncharged metal object?

    <p>The metal object becomes negatively charged (A)</p> Signup and view all the answers

    What is the purpose of the triboelectric series?

    <p>To rank materials by their tendency to acquire charge (C)</p> Signup and view all the answers

    What determines the element of an atom?

    <p>Number of protons (D)</p> Signup and view all the answers

    What is the triboelectric series based on?

    <p>Electron affinities of materials (A)</p> Signup and view all the answers

    What happens when a grounded wire is attached to a charged object?

    <p>The object loses its charge to the ground (B)</p> Signup and view all the answers

    What is a characteristic of charges in a conducting sphere?

    <p>They stay at the surface of the sphere (A)</p> Signup and view all the answers

    What is the result of charging by friction?

    <p>One object loses electrons, the other gains electrons (A)</p> Signup and view all the answers

    What is the principle behind charging by induction?

    <p>A charged object can induce charges in a neutral object (D)</p> Signup and view all the answers

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