Electromagnetic Induction and Power Transmission
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Questions and Answers

What are electromagnetic induction devices typically found in?

  • Hybrid cars
  • Various applications (correct)
  • Energy sources
  • Similar devices

    • What is the function of a step-up transformer in an electrical circuit?

  • Increase current
  • Increase energy
  • Decrease energy
  • Increase voltage (correct)

    • Why is it best to keep the current in wires low when carrying power across the countryside?

  • To increase voltage
  • To increase energy
  • To decrease current
  • To decrease heat losses (correct)

    • According to James Clerk Maxwell, how does the change in the electric field respond to an increase in the magnitude of the magnetic field?

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

    What is the main advantage of using electromagnetic induction in power transmission?

    <p>Decreased energy loss</p> Signup and view all the answers

    What is the primary application of electromagnetic induction in hybrid cars?

    <p>Energy conversion</p> Signup and view all the answers

    How does the voltage in a step-up transformer relate to the current?

    <p>Voltage increases as current decreases</p> Signup and view all the answers

    What is the relationship between the magnetic field and electric field in electromagnetic induction?

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

    Why is electromagnetic induction used in power transmission?

    <p>To decrease energy loss</p> Signup and view all the answers

    What is the main principle behind electromagnetic induction?

    <p>The interaction between electric and magnetic fields</p> Signup and view all the answers

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