Magnetic Basics
The rule that explains magnetic field direction around a coil using the left hand.
Left-hand Coil Rule
Mutual induction is the ability of an inductor (coil) in one circuit to __ a voltage in another circuit or conductor
Induce
A motor's starting Torque is also known as this type of torque
Locked-rotor
A motor’s nameplate voltage rating is the ___ voltage that should be connected to the motor for best operating performance.
Optimal
The motor part that usually shows proper wiring connections for the desired operation
Nameplate
The ability of a material to conduct magnetic flux is called what?
Permeability
In a motor, this force is used to convert Electrical energy into mechanical rotation
Electromagnetism
Motor power is rated in __ or __.
Horsepower or Watts
Motor nameplate electrical ratings include a voltage rating, current rating, frequency rating, and ___
Phase
An abbreviation that may not be used on a motor nameplate is __.
VA
Electromagnetism is considered this type of magnetic force because it only exists when current flows.
Temporary
This ring in a squirrel cage rotor provides a short circuit path for current
Shorting Ring
The fixed part of an alternator that supplies a magnetic field through field windings is called a __. (similar to an AC motor)
Stator
On a motor nameplate "HZ" refers to what rating?
Frequency
When two equal coils are in parallel, the total resistance is what fraction of one coil?
one half
Three-phase AC power is generated by rotating 3 coils through this.
Magnetic Field
A motor's rotor is mounted on this, which is used to transfers power to the load.
Shaft
Class __ is the best rated motor insulation code and should be used in any application in which a motor drive is used to operate the motor.
H
On a motor nameplate mechanical-design codes include NEMA design letter, enclosure type, type of motor bearing and this.
Frame Size
The bars of this motor are narrow and are placed deep in the iron, which increases the reactance and lowers the current, while maintaining normal starting torque.
Design B