Wauchope, Joseph Alliene, 1873- · Chicago, Scott, Foresman and Company · leaf 55
Are the lines about a bar magnetuniformly distributed or are there crowded places?What is the cause of this? Are the poles immediately at the ends of the bar? Do the lines cross each other or do they merge intoone another? Which poles placed near each other show magneticattraction? Which magnetic… … Directions.—Slip one of the spools of wire over therod and connect to one of the cells. See how manytacks end to end you can get to hang on the end of therod. In the same way try two spools connected withone cell and again two spools with two cells.{Caution.—When the two spools are used they mustbe…
Physics
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