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Irrigation channels that require regular flow monitoring are often equipped with
a. What is the magnitude of the field at the center of the coil?
b. If the field is directed downward and the water is flowing east, what is the direction of the force on a positive ion in the water above the center of the coil?
c. If the water is flowing above the center of the coil at 1.5 m/s, what is the magnitude of the force on an ion with a charge +e?
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