11

ID: past-exam-of-the-medicine-course-of-the-university-of-oxford/1867/first-examination/physics/11

Original question.
If round an electromagnet, a quantity of insulated wire be coiled, in the same way as the coil of the magnet itself, and the ends of this wire be connected with the terminals of a multiplying galvanometer, describe what takes place, when a current is sent round the coil of the magnet, and when this current is stopped.

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