MOLYBDENUM PERMALLOY FOR INDUCTANCE COILS 



393 



10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 

 TEMPERATURE IN DEGREES FAHRENHEIT 



Fig. y^Effect of temperature on permeability of stabilized and 

 unstabilized cores. 



simplifies circuit problems arising from resistances which vary with 

 energy level, and it avoids troublesome modulation conditions. 



The total resistance per unit inductance arising from eddy-current 

 and hysteresis losses may be expressed as ^^ 



RJL = fx(aBm + c)f + nef, 



where the symbols are as given in the Appendix. 



Table I gives the loss coefificients for various core materials, and for 



TABLE I 

 Loss Coefficients of Powdered Core Materials 



