A Synchronous Motor Running with Normal Excitation Adjusts to Load

question 19

Multiple Choice

A synchronous motor running with normal excitation adjusts to load increases essentially by increase in

• A)back e.m.f.
• B)armature current
• C)power factor
• D)torque angle

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Definitions:

Interactions

In research, refers to the way that different factors or variables influence each other, often changing the outcome or effects when combined.

Internal Validity

The extent to which a study can prove that a cause-and-effect relationship exists between the tested variables, excluding the influence of external factors.

Nonmonotonic Relationship

A relationship between two variables where the direction of the effect changes over the range of the variable, meaning it can increase then decrease, or vice-versa.

Independent Variables

The factors that are manipulated or varied by researchers in an experiment to determine their effect on the dependent variable.