Question

12.

What is it about the poles pieces of a DC generator that determines if it will

be called a magneto?

13.

Name two parts of a DC generator that are made of iron:

a.

b.

14.

Draw a schematic of a series DC generator. Draw a schematic of a shunt DC

generator.

15.

Why must a “self-excited” series generator have a load connected in order

for current to flow in the field, whereas a self-excited shunt generator does

not need a load connected?

18.

When load is added to a shunt generator, the output voltage [decreases]

[increases]. When load is added to a series generator (load added in

parallel), the output voltage [decreases][increases].

19.

In a generator, voltage regulation (

a measure of

how much the output drops

as load is added

) is determined by the resistance of the armature. A [low]

[high] resistance armature is generally a very desirable characteristic

Answer 1

12.if poles are made of permanent magnets then DC generator is called magneto.

13.the two parts of DC generator that are made of iron are

1.yoke : which gives mechanical strength to dc generator and alo carries magnetic flux through it so made of iron .

2.pole shoe support the coils or windings wounded to it and it is generally made of wrought iron or steel.