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Physical Science with Earth and Science
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Electromagnetic Induction
Worksheet
Grade Level
Physical Science with Earth and Science
9.89 Electromagnetic Induction
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Why are iron cores in some generators and transformers often laminated into thin sheets?
A
To ensure current flows only through plastic insulation.
B
To reduce unwanted eddy-current heating while still guiding the magnetic field.
C
To make the core act like a chemical battery.
D
To remove the need for changing magnetic fields.
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