70 NOM08. 



The result will be certain dissimilar lateral re- 

 actions between the currents, by which reactions the 

 magnet is carried transversely towards the left. 

 There will be no reaction in the median line itself, 

 that is in the line of the arrow a b, because this line 

 is the plane of inaction between the opposite reac- 

 tions of the two sides. There will be attraction to 

 the left of the median line, because the reacting cur- 

 rents on this side, as is indicated by the arrows a' V 

 and c'd'i are passing in the same direction, in that they 

 are passing towards the same angular point. There 

 will be repulsion (it is said) to the left of the median 

 line, because the reacting currents on this side, as is 

 indicated by the arrows a!' b" and c" d", are passing in 

 opposite directions, in that one is moving towards 

 the point from which the other is passing. Accord- 

 ing to this explanation, therefore, the magnet is 

 simultaneously drawn and pushed in diverging direc- 

 tions towards the same side, that is, towards the left. 

 It is drawn down to a point (say e jn Fig. 18.) which is 

 somewhere in the space between the attracting cur- 

 rents a' I)' and c f d'\ it is thrust to a point (say/) in 

 a line which is directed away from the space which 

 is between the repelling currents a" b" and c" d" ; 

 and not being able to obey either impulse exclusively, 

 it yields a joint obedience, and moves to g. It 

 moves, that is to say, to a point in a line which is 

 perpendicular to the line connecting the magnet and 

 conductor, for it is assumed that the attractive and 

 repellent forces are exactly equal, and that they are 

 directed at similar angles on each side of this line. 

 Thus : 



