Important Topics
1. Leclanché cells, (a), wet, (b), dry, construction, advantages, uses.
2. Daniell and gravity cells, construction, advantages, uses.
3. Three effects of electric currents, illustrations.
4. The galvanoscope, uses.
Exercises
1. Explain how the direction of current in a wire can be determined by a compass.
2. Would you expect to obtain a current from a zinc and copper cell containing a solution of common salt? Perform the experiment.
3. What conditions in a voltaic cell will give a steady electromotive force.
4. What conditions in a voltaic cell will give a strong electromotive force.