## Electrical Machines If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then

wave-wound machine will have more rated current and more voltage
lap-wound machine will have more rated voltage and more current
lap-wound machine will have more rated voltage and less current
wave-wound machine will have more rated voltage and less current

200 V
115 V
230 V
460 V

## Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would

remain unchanged
be more than 10%
be less than 10%
be 12.5%

## Electrical Machines Two dc machines A and B, using the same conductor material, have armature circuit resistances of 0.4 Ω and 1.2 Ω respectively. Of the two machines,

both are of the same size for the same current rating
A is bigger than B for the same voltage rating
A is bigger than B for the same current rating
B is bigger than A for the same current rating