If the following equation gives the phase voltage for a PMAC when the phase current (Iph) is in phase with the back emf (Eph)
Vph = (Eph + Rs

how would equation change when the Iph is 180 degrees out of phase with the back emf?

***Iph) + j***2***pi***frequency in hertz***Ls***Iphhow would equation change when the Iph is 180 degrees out of phase with the back emf?