DC Generators
The overall efficiency of a dc generator is maximum when its variable loss is equal to

Stray loss
Constant loss
Mechanical loss
Iron loss

ANSWER DOWNLOAD EXAMIANS APP

DC Generators
In a D.C. generator

Internal characteristic = magnetization characteristic ohmic drop
Magnetization characteristic = external characteristic
External resistance = internal characteristic armature reaction
External characteristic = magnetization characteristic ohmic drop armature reaction

ANSWER DOWNLOAD EXAMIANS APP