Practical Physics for Schools And the Junior Students of Colleges
Practical Physics for Schools And the Junior Students of Colleges
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In our eReader you can find the full English version of the book. Read Practical Physics for Schools And the Junior Students of Colleges Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Practical Physics for Schools And the Junior Students of Colleges
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Place one on either side of the strip of steel and thrust a sewing needle, that is to serve as an axis, through the centre of one wad, then through the hole in the strip of steel, and finally through the centre of the other wad. Secure the wads to the steel by balsam cement. The needle should now be put away until the cement sets. Test whether the steel remains balanced, and if not, a final adjustment must be made by grinding on a stone. (5. ) Magnetise the needle by II MAGNETISM 79 the method ...of divided touch. On the base of the dip circle a hole h is drilled sufficiently large to admit the pivot of the dip needle and the fixing wad. We must fix, for the purpose of magnetisation, the dip needle flat to the wooden base (with one of its pivots inserted in the hole) by means of a strip of brass provided with a screw S (Fig. 26). We now take a magnet in each hand and place the opposite poles WOOD GLASS PAPER CORK STEEL near the centre of the needle (Fig. 27), and draw the magnet from the middle to the ends of the needle about twenty times.
What to read after Practical Physics for Schools And the Junior Students of Colleges?
You can find similar books in the "Read Also" column, or choose other free books by Balfour Stewart to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Place one on either side of the strip of steel and thrust a sewing needle, that is to serve as an axis, through the centre of one wad, then through the hole in the strip of steel, and finally through the centre of the other wad. Secure the wads to the steel by balsam cement. The needle should now be put away until the cement sets. Test whether the steel remains balanced, and if not, a final adjustment must be made by grinding on a stone. (5. ) Magnetise the needle by II MAGNETISM 79 the method ...of divided touch. On the base of the dip circle a hole h is drilled sufficiently large to admit the pivot of the dip needle and the fixing wad. We must fix, for the purpose of magnetisation, the dip needle flat to the wooden base (with one of its pivots inserted in the hole) by means of a strip of brass provided with a screw S (Fig. 26). We now take a magnet in each hand and place the opposite poles WOOD GLASS PAPER CORK STEEL near the centre of the needle (Fig. 27), and draw the magnet from the middle to the ends of the needle about twenty times.
What to read after Practical Physics for Schools And the Junior Students of Colleges?
You can find similar books in the "Read Also" column, or choose other free books by Balfour Stewart to read onlineMoreLess
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