Electric Current in a Conductor Under an Electric Field
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Questions and Answers

What happens to the number of electrons travelling in any direction in a conductor?

  • They tend to accumulate on the other side
  • They are not influenced by the electric field
  • They tend to accumulate on one side
  • They remain equal in any direction (correct)

    • In the scenario described, when will there be a current in the conductor?

  • When there is no electric field applied
  • When the electrons are stationary
  • For a very short while when electrons move to neutralize the charges (correct)
  • When the positive charge on one disc is greater than the negative charge on the other disc

    • What results in the creation of an electric field in the conductor?

  • Presence of positive and negative charges on opposite discs (correct)
  • Difference in electron and proton numbers
  • Existence of neutral charges only
  • Movement of positive charges

    • How does a steady electric field differ from a temporary one in a conductor?

    <p>A steady field results in a continuous current flow</p> Signup and view all the answers

    What can be employed to maintain a steady electric field in a conductor?

    <p>Cells or batteries</p> Signup and view all the answers

    What is responsible for accelerating electrons in a conductor when an electric field is applied?

    <p>The electric field applied</p> Signup and view all the answers

    What is the relationship described by Ohm's law?

    <p>V is directly proportional to I</p> Signup and view all the answers

    What does the symbol W represent in the context of resistance?

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

    How does resistance R depend on the dimensions of a conductor?

    <p>Positively on the length and cross-sectional area of the conductor</p> Signup and view all the answers

    If two identical slabs are placed side by side, how does the resistance change?

    <p>Remains the same</p> Signup and view all the answers

    What was G.S. Ohm's contribution to electrical science in 1828?

    <p>Discovered Ohm's Law</p> Signup and view all the answers

    What is the SI unit for resistance?

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

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