Answer ALL questions. Look for any feedback given if you get an answer incorrect. Keep choosing an answer until you get it correct. CORRECT or INCORRECT answers are indicated at the TOP of the page. A score is given at the TOP of the page when the exercise has been completed.
To what does flemings right hand rule apply ?
motors
generators
transformers
motors and generators
To what does flemings left hand rule apply ?
motors
generators
alternators
motors and generators
Identify A on the diagram shown here.
current
magnetic field direction
motion
voltage
Identify B on the diagram shown here.
current
magnetic field direction
motion
voltage
Identify C on the diagram shown here.
current
magnetic field direction
motion
voltage
What type of machine is shown here ?
dc generator
ac alternator
3 phase generator
ac/dc generator
What type of machine is shown here ?
dc generator
ac alternator
3 phase generator
ac/dc generator
Which one of the following does not help determine the voltage output of a dynamo?
magnetic flux density
rotational speed of the coil
number of turns on the coils
winding the coils onto a dense iron core
Which one of the following is used to establish the speed of a motor?
number of pole-pairs
size of the motor
dense iron core
use of a squirrel cage design
What type of motor depends on the number of pole-pairs and supply frequency to determine its speed?