What causes the conductive surface area of the cable to decrease as signal frequencies increase?

A. Characteristic Impedance
B. Changes in temperature
C. Skin effect
D. Bend radius


C. Skin effect

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Which soil test measures how cohesive the soil is by rolling a moist sample of the soil into a ball?

a. plasticity b. thumb penetration c. pocket penetrometer d. sedimentation

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A hormone called epinephrine stimulates the release, or letdown, process

Indicate whether the statement is true or false

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When the rotor is removed from the rear housing the brushes will fall out

Indicate whether the statement is true or false

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For each part of the job, the concrete cover is determined by the _____

a. architect b. local codes c. structural engineer d. concrete contractor

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