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Dip Needle EM-h1c
A dip needle is used to show the inclination of the earth's field. Fishbane Chapter:   29.1 HRW 9th:   32.06 Reese Chapter:   20.1 SJ 3rd Chapter:   22.1 PIRA DCS classification:   5H10.15

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Physics Lecture Demonstrations at the Department of Physics and Astronomy
The Johns Hopkins University