A modified version of Daniells Cells, a U—Shaped tube is replaced with a porous disk acting as saline bridge thus electric current is produced.

Picture a circuit consisting of a galvanic cell whose terminals are connected to a resistor. Within the galvanic cell, a chemical reaction occurs moving charges to increase their electric potential energy. The voltage of the battery tells us how many joules of potential energy are imparted to each coulomb of charge elevated. As the charge moves through the resistor, on its way back down the potential energy slope, it loses this potential energy, undergoing collisions with atoms in the resistor that lead to the production of heat. The rate at which the charge loses potential energy in the resistor is the power of the circuit.












The WikiPremed MCAT Course is a comprehensive course in the undergraduate level general sciences. Undergraduate level physics, chemistry, organic chemistry and biology are presented by this course as a unified whole within a spiraling curriculum. Please read our policies on Privacy and Shipping & Returns.  Contact Us. MCAT is a registered trademark of the Association of American Medical Colleges, which does not endorse the WikiPremed Course. WikiPremed offers the customers of our publications or our teaching services no guarantees regarding eventual performance on the MCAT.


Creative Commons License
WikiPremed is a trademark of Wisebridge Learning Systems LLC. The work of WikiPremed is published under a Creative Commons Attribution NonCommercial ShareAlike License. There are elements of work here, such as a subset of the images in the archive from WikiPedia, that originated as GNU General Public License works, so take care to follow the unique stipulations of that license in printed reproductions.