Low Frequency and their Resonance. 



505 



Hence W, — W„ = work transferred from the primary to the 

 secondary circuit. 



W t - W 



=z e = ratio of transference. 



A simple calculation gives 



p*W 



p 2 M 2 + RS' 



The higher the frequency the higher will be the ratio of 

 transference other things being equal. The curves expressing 



the relation between the resistance in the secondary circuit as 

 abscissae and the amplitudes of primary and secondary currents 

 and potential differences in primary and secondary condenser 



