Question

shunt field winding having large no of winding and series field winding having few winding

Answer 1

Shunt field has more number of turns which are thin. Similarly, series wounded field has less turns of thick conductors. Each of these are done to give suitable resistance as per requirement. Series windings carry more current and should allow compratively less voltage drop. That's why it is so. Shunt windings are connected between line and neutral and an effective resistance is required such that the field doesn't acts as short circuited path. Furthermore, it also reduces power loss in form of heat.