Northwestern Physics Demos                                 Go back to Electricity   
DCS#  5E40.20NWU#  Location:  11 A 2
title: Voltaic Cells
aka:  EMF sources

Description:
A collection of examples of EMF sources:  a zinc carbon cell, two metal cell, 9 V battery, thermo-couples.

Question?
  What do all these sources have in common?
pix of set up