A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (2021)
Practice Questions
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Q1
A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (2021)
Electromagnetic induction
Magnetic resonance
Electrolysis
Magnetic levitation
When a loop of wire is placed in a changing magnetic field, electromagnetic induction occurs, generating an electromotive force (EMF) in the loop.
Questions & Step-by-step Solutions
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Q
Q: A loop of wire is placed in a changing magnetic field. What phenomenon occurs? (2021)
Solution: When a loop of wire is placed in a changing magnetic field, electromagnetic induction occurs, generating an electromotive force (EMF) in the loop.
Steps: 7
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).
