Lecture 1 Magnetic Field-General Review Courseware of the 2013 College Entrance Examination Physics

2020-09-22 15:22:48

Lecture 1 Magnetic Field-General Review of Physics Key and Difficulties in the 2013 College Entrance Examination When the magnet moves downward, the correct one of the above options is () A. The upper end of the electromagnet is N pole, the lower end of the small magnet is N pole B. The upper end of the electromagnet is S pole, and the lower end of the small magnet is S pole C. The upper end of the electromagnet is N pole, the lower end of the small magnet is S pole D. The upper end of the electromagnet is S pole, and the lower end of the small magnet is N pole. The upper end of the iron is the S pole, which can attract the small magnet to move downwards, so the lower end of the small magnet is the N pole, and the D option is correct.

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