What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a circuit?
Practice Questions
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Q1
What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a circuit?
Electromagnetic induction
Magnetic resonance
Electrolysis
Magnetization
The phenomenon is known as electromagnetic induction, as described by Faraday's law.
Questions & Step-by-step Solutions
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Q
Q: What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a circuit?
Solution: The phenomenon is known as electromagnetic induction, as described by Faraday's law.
Steps: 5
Step 1: Understand that a magnetic field is an area around a magnet where magnetic forces can be felt.
Step 2: Learn that when the strength or direction of a magnetic field changes, it can affect nearby electrical circuits.
Step 3: Know that this change in the magnetic field can create an electric current in the circuit.
Step 4: This process of generating electric current from a changing magnetic field is called electromagnetic induction.
Step 5: Remember that Faraday's law explains how this induction works, stating that the induced electromotive force (EMF) is proportional to the rate of change of the magnetic field.
