1) Is armature reaction seen in all machines ie DC, INDUCTION & SYNCHRONOUS machines ? (just answer briefly, which all machines exhibit it) 2) Is back emf in DC motor nothing but LENZ'S law, or is the generating action in DC motor called the LENZ's law, or are both same, and I'm confused ? (plz clarify this briefly) 3) Is magnetic drag in DC generator nothing but lenz's law, or is it motoring action in DC generator called the LENZ's law, or are both the same, and I'm just confused ? 4) is armature reaction in dc motor nothing but lenz's law extension? 5) is armature reaction in dc generator nothing but lenz's law extension ?