Electromagnetic Induction and Faraday's Law
6 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of Faraday's law in relation to magnetic fields?

  • To predict how a magnetic field will produce an EMF in a loop of wire (correct)
  • To measure the strength of a magnetic field
  • To calculate the area of a loop of wire
  • To generate an EMF in a loop of wire without changing the magnetic flux

    • What is the result of changing the magnetic flux through a loop of wire?

  • The loop of wire is demagnetized
  • The loop of wire becomes magnetized
  • The magnetic field is cancelled out
  • An EMF is generated in the loop, driving a current (correct)

    • What is Lenz's law in relation to induced current?

  • The induced current is always stronger than the external field
  • The induced current is always weaker than the external field
  • The induced current always flows in the same direction as the external field
  • The induced current and induced magnetic field oppose the change in flux (correct)

    • What happens to the external magnetic field when a magnet is pulled away from a loop?

    <p>The external field gets smaller</p> Signup and view all the answers

    What is the requirement for producing an EMF in a loop of wire?

    <p>The magnetic field must be varied</p> Signup and view all the answers

    How many magnetic fields are involved when inducing a current in wire using a magnetic field?

    <p>Two, the external field and the induced field</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser