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August 21, 2014

Homework Help: physics

Posted by sophie on Monday, April 13, 2009 at 9:24pm.

There are four coils of wire being used as electromagnets. They all have the same size and are made up of the same material but have a different number of loops. Which coil will produce a magnetic field with the maximum strength when the same amount of current passes through all coils?
A. a coil having 10 loops
B. a coil having 25 loops
C. a coil having 30 loops
D. a coil having 45 loops
would it be D?

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