PEIRCE. — ESTABLISHMENT OF CURRENT IN COIL. 



167 



Figure 10. Transformer (DN): The curves, PRH and SEC, deduced 

 from theoretical considerations, indicate the march of the current in the 

 primary and secondary coils respectively. The increase of the flux of magnetic 

 induction, through the core, with the time is shown by the curve ONM. 



IPigture 11. Hysteresis diagram for the core of the transformer (DN). 



