MOTOR AND GENERATOR

Question 1

3 factors that affect the generator of emf

Answer 1

• Magnet
• Armature winding
• Relative motion

Question 2

Converts ME to EE

Answer 2

Generator

Question 3

Current produced by relative motion of coil or magnet

Answer 3

Induced current

Question 4

Supplies electrical energy and develops torque

Answer 4

Motor

Question 5

DC Machines

Answer 5

Motor and generators

Question 6

Parts of dynamo

Answer 6

1. Stator
2. Rotor
3. End plates

Question 7

Outer part of machine which is stationary

Answer 7

Stator

Question 8

Inner shaft of the machine

Answer 8

Rotor

Question 9

Yoke

Answer 9

The outer frame which is made up of steel cast or iron

Question 10

Provides mechanical support for the poles

Answer 10

Yoke

Question 11

Field Windings

Answer 11

Made up of insulated coils of magnet wires. It produces magnetic flux to be cut by armature windings

Question 12

Pole Core

Answer 12

Made up of laminated steel sheets which holds the field windings

Question 13

Pole shoe

Answer 13

Use to reduce the reluctance of he air gap, to provide mechanical support to the field windings, and to establish the desired flux distribution.

Question 14

Rotor of a DC Machine is called

Answer 14

Armature

Question 15

Carries current crossing the field

Answer 15

Armature winding

Question 16

Built on the shaft of the rotor at one end of the core. Made of copper bars insulated by mica

Answer 16

Commutator

Question 17

Made of steel which holf the amarture core

Answer 17

Shaft

Question 18

Canals or grooves where magnet wires are placed

Answer 18

Slot

Question 19

Separate magnetic wires

Answer 19

Tooth

Question 20

made up of carbon, graphite of mix. it collects the current from the commutator

Answer 20

Brushes

Question 21

Magnetic flux

Answer 21

total number of magnetic lines of force in a magnetic field.

Question 22

Fluxmeter

Answer 22

Measures magnetic flux