The Nutrition of Prunes. With their dark and wrinkled skin, prunes may not be the prettiest fruits in the fruit stand, but there is no doubt that they are some of the healthiest foods you can eat. Whether you are dealing with bowel movement problems or trying to lose weight, prunes are an ideal fruit that you should add to your diet.
A voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical energy. 1  The anode is an electrode where oxidation occurs. 2  The cathode is an electrode where reduction occurs.  A salt bridge is a chamber of electrolytes necessary to complete the circuit in a voltaic cell.
For electrolytic cells, the cell potential is negative, so a potential input greater than the magnitude of the cell potential must be present for electrolysis to occur. In contrast, galvanic/voltaic cells already have a positive cell potential. Thus, no input is required for galvanic/voltaic cells.