SCIENTIFIC MEMOIRS. 



VOL. II.— PART VIII. 



Article XIII. continued. 



The Galvanic Circuit investigated Mathematically. By 

 Dr. G. S. Ohm*. 



The Galvanic Circuit. 



A. General observations on the diffusion of electricity. 



1. A. PROPERTY of bodies, caUed into activity under certain 

 circumstances, and which we call electricity, manifests itself in 

 space, by the bodies which possess it, and which on that ac- 

 count are termed electric, either attracting or repeUing one 

 another. 



In order to investigate the changes which occur in the 

 electric condition of a body A in a perfectly definite manner, 

 this body is each time brought, under similar circumstances, into 

 contact with a second moveable body of invariable electrical con- 

 dition, called the Electroscope, and the force with which the 

 electroscope is repelled or attracted by the body is determined. 

 This force is termed the electroscopic force of the body A ; and 

 to distinguish whether it is attractive or repulsive we place be- 

 fore the expression for its measure the sign + in the one case, 

 and — in the other. 



The same body A may also serve to determine the elec- 

 troscopic force in various parts of the same body. For this 

 purpose we take the body A of very small dimensions, so that 

 when we bring it into contact with the part to be tested of any 

 third body, it may from its smallness be regarded as a sub- 



• " Die Gulvaniscke Kette mathematisck bearheitet von Dr. G. S. Ohm : 

 Berlin, 1827." 



VOL. II. PART VIII. 2 G 



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