English: The moment you solve for I_(a) and I have the speed as 400 rpm I should be able to calculate what is the value of V_(t), So E_(b) at 400 rpm and at rated excitation = If I have E_(b) at 400, if I call this as E_(b)^(l) then I can say followed a similar thing for the other one all where the field control is being implemented where I am going to assume that the voltage is maintained constant at rated value.
Telugu: మీకు I_(a) వచ్చినప్పుడు మరియు నేను 400 rpm వేగంగా కలిగి ఉన్నందున నేను V_(t) యొక్క విలువ ఏమిటో లెక్కించగలను. V_(t) = E_(b) + I_(a)R_(a). కావున, E_(b) నేను లెక్కించగలను.