Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 175
ARY ELECTRICITY Answer. Yes. Pass a straight wire carrying a largecurrent through the center of a sheet of cardboard asshown in Fig. 89. If iron filings are sprinkled on theboard they will arrange themselves in circles around thewire, thus showing the magnetic field. Question 3. Will the wire… … Fig. 90. Action of Electric Current on Magnetic Needle. It is also easily shown by holding a wire carryingcurrent over a magnetic needle. The needle will beturned and stand at an angle to the wire. Fig. 90 showsthis. Question 4. Does the wire exhibit north and southpolarity like a bar magnet?…
Electricity
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