DC motors and generators

The direction of a magnetic field goes from...

• South to North

• South to South

• North to South

• North to North

A DC generator that relies on a power supply is called a....

• Self excited generator

• Separately excited generator

• A series generator

• A shunt generator

Tags

NGSS.HS-PS3-3

The coil/s in a DC generator that has an E.M.F induced into it and is where the load draws current from is called.....

• Field coils

• Magnet coil

• Spring coil

• Armature coil

Tags

NGSS.HS-PS2-5

In a DC generator the coil/s which contains a magnetic field are/is...

• Field coils

• Magnet coils

• Spring coils

• Armature coils

Tags

NGSS.HS-PS2-5

Which part of a DC generator converts the AC power generated to DC?

• Amature coil

• Field coils

• Commutator

• Brushes

On a DC generator the brushes create a connection and still allow the comutator to turn.

• True

• False

A series generator is very good at voltage regulation.

• True

• False

Separately excited and shunt DC generators are very good at speed regulation.

• True

• False

What is the main difference between a DC generator and a DC motor.

• The load is replaced with a battery

• There is no difference

• Generators work faster

• Motors generate electricity.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

A DC motor that generates highest starting torque is....

• Series

• Shunt

• Compound

• None of the above