Physics for IGCSE & O level - Magnets And Currents (Section 7 - No. 42)
What would cause the e.m.f. to change in an induction coil?
Using a stronger magnet.
Using more turns on the coil.
Using a higher voltage.
Moving the magnet more slowly.
Explanation
The e.m.f. is affected by the strength of the magnet, and the number of turns on the coil. The speed of the magnet has an impact.
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