Electricity and magnetism : an elementary text-book, theoretical and practical (1920)
Glazebrook, Richard, Sir, 1854-1935 · Cambridge : The University press · leaf 247
a direction perpendicular to the plane of the circle.Various experiments have been devised to illustrate this law. Thus, in Fig. 149, ABG represents a circular coil of givenradius, say 5 cms., containing one turn. DEF is a second coilof twice the radius having two turns. The two coils… … Fig. 149. are placed with their plane in the magnetic meridian. Asmall magnet attached to a mirror is suspended at the commoncentre of the coils and a beam of light is reflected fromthe mirror on to a scale. The connexions are usually suchthat the current can be allowed to pass through either…
Electricity · Magnetism
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