If the Current in a Wire Is Tripled,what Effect Does

question 18

Multiple Choice

If the current in a wire is tripled,what effect does this have on the electron drift velocity in the wire?

• A)It stays the same.
• B)It triples.
• C)It decreases by a factor of three.
• D)It increases by a factor of nine.

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Definitions:

Visual Receptors

Cells located in the retina that are sensitive to light and play a key role in vision by converting light energy into neural signals.

Retina

A layer at the back of the eyeball containing cells that are sensitive to light and trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Trichromatic Theory

A theory of color vision proposing that the human eye has three types of receptors with different sensitivities to light wavelengths, responsible for the perception of color.

Cones

Cones are photoreceptor cells in the retina of the eye responsible for color vision and functioning best in relatively bright light.