What is used to determine the presence and direction of magnetic field
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Electric current produces a magnetic field. ... One way to explore the direction of a magnetic field is with a compass, as shown by a long straight current-carrying wire in. Hall probes can determine the magnitude of the field.
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One way to explore the direction of magnetic fields is with a compass, as shown by a long current-carrying wire in.. Hall probes can determine the magnitude of the field....
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