A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (

Practice Questions

Q1
A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (2021)
  1. Electromagnetic induction
  2. Magnetic resonance
  3. Electrolysis
  4. Magnetic levitation

Questions & Step-by-Step Solutions

A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (2021)
  • Step 1: Understand that a loop of wire can conduct electricity.
  • Step 2: Recognize that a magnetic field is an invisible force field around magnets.
  • Step 3: Know that a changing magnetic field means the strength or direction of the magnetic field is changing over time.
  • Step 4: When the magnetic field around the loop changes, it affects the electrons in the wire.
  • Step 5: This change in the magnetic field causes the electrons to move, creating an electric current.
  • Step 6: This process of generating electricity from a changing magnetic field is called electromagnetic induction.
  • Step 7: The electric current generated is associated with a measure called electromotive force (EMF).
  • Electromagnetic Induction – The process by which a changing magnetic field induces an electromotive force (EMF) in a conductor.
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