Creating Current with Magnetism
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Objective
I can describe how a changing magnetic field can produce an electric current.
Part 1 of 4
Warm-up video
CrashCourse · 9:49Vetted channel
We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
According to Faraday's Law of Induction, a changing magnetic field will induce an electromotive force (EMF) in a loop of wire.
- 2
Magnetic flux is a measure of the magnetic field running through a loop of wire, and the induced EMF is equal to the negative of the change in flux over the change in time.
- 3
Lenz's Law states that the magnetic field generated by the induced current will be in the opposite direction of the change in magnetic flux.
Part 3 of 4
Practice
12 questions
According to Faraday's Law of Induction, what condition is necessary for a magnetic field to induce an electric current in a loop of wire?
Define magnetic flux and explain its significance in electromagnetic induction.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe one way a changing magnetic field can be used to create an electric current.”
Sample answer included in the free materials
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