3. A circular coil, enclosing an area of 100 cm2, is made of 200 turns of copper

Question

3. A circular coil, enclosing an area of 100 cm2, is made of
200 turns of copper wire. The wire making up the coil has
resistance of 5.0 ? and the ends of the wire are connected to form a closed loop. Initially, a 1.1 T uniform magnetic field points perpendicularly upward through the plane of the coil. The direction of the field then reverses so that the final magnetic field has a magnitude of 1.1 T and points downward through the coil. If the time required for the field to reverse directions is 0.10 s, calculate the current through the coil during this time?

Explanation / Answer

The area is A = 100 x 10^-4 m

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