If an Electric Field Is Applied to a Metal

question 8

Multiple Choice

If an electric field is applied to a metal:

• A)very few electrons are excited into the conduction band.
• B)electrons having energies near the Fermi energy require only a small amount of additional energy from the applied field to reach nearby empty energy states.
• C)electrons having energies near the bottom of the band require only a small amount of additional energy from the applied field to reach nearby empty energy states.
• D)the principal mode of conduction is through the motion of holes in the filled part of the band.
• E)the Fermi energy Ef becomes equal to the applied electric field E.

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Definitions:

Glaucoma

A group of eye conditions that damage the optic nerve, often caused by abnormally high pressure in the eye, and can lead to loss of vision if not treated.

RGC Axons

The nerve fibers of retinal ganglion cells that extend into the brain, conveying visual information from the eye.

Retinal Ganglion Cells

Neurons in the retina that receive visual information from photoreceptors and transmit it to the brain.

Optic Nerve

The cranial nerve that transmits visual information from the retina to the brain.