A Transformer Changes the 10,000 V Power Line to 120

question 18

Multiple Choice

A transformer changes the 10,000 V power line to 120 V.If the primary coil contains 750 turns,how many turns are on the secondary?

• A) 3
• B) 6
• C) 9
• D) 63,000
• E) 21,000

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Definitions:

Cohen's D Test

A measure of effect size that evaluates the difference between two means relative to the standard deviation of the sample.

Directional

Pertains to tests or hypotheses that specify the expected direction of the relationship or difference between variables.

Nondirectional

Pertaining to hypotheses or research questions that do not specify the direction of the expected relationship between variables.

F-test

A type of statistical test that compares the variances of two or more groups to find if they come from populations with equal variances.