You Want to Store 10¹⁰ Excess Electrons on the Negative

question 38

Multiple Choice

You want to store 10¹⁰ excess electrons on the negative plate of a capacitor at 9.0 V.How large a capacitance must you use?

• A)0.014 µF
• B)0.18 µF
• C)0.18 nF
• D)14 pF
• E)5.6 pF

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Definitions:

Ciliary Muscle

Within the ciliary body of the vertebrate eye, the ciliary muscle controls the shape of the lens.

Iris

Muscular ring that surrounds the pupil and regulates the passage of light through this opening.

Pupil

Opening in the center of the iris of the vertebrate eye.

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into electrical signals sent to the brain.