Wright, Mark R., 1854- · London : Longmans · leaf 218
t is meant by electromotive force, and potential ? 3. How is the current sustained in a cell ? 4. What is meant by polarisation ? How is it prevented ? 5. Why and how are zinc plates amalgamated ? 6. Explain by the aid of a sketch, the construction of a Daniell cell. 209 CHAPTER II THE CURRENT—THE… … Fig. zii the poles of a cell. The needle is deflected. Now hold the wirebeneath the needle; again deflection ensues, but in an oppositedirection (fig. 211). When the current flows from south to north, above the needle,the north-seeking pole turns to the west; when placed below, itturns to the east.…
Physics
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