At T = 0 the Switch S Is Closed with the Capacitor

question 45

Multiple Choice

At t = 0 the switch S is closed with the capacitor uncharged. If C = 40 μF, ε = 50 V, and R = 5.0 kΩ, how much energy is stored by the capacitor when I = 2.0 mA?

• A) 20 mJ
• B) 28 mJ
• C) 32 mJ
• D) 36 mJ
• E) 40 mJ

---

Definitions:

Oval Window

A membrane-covered opening that leads from the middle ear to the vestibule of the inner ear.

Tympanic Membrane

Commonly known as the eardrum, the tympanic membrane is a thin membrane that vibrates in response to sound waves, playing a crucial role in hearing.

Utricle

A small, fluid-filled sac in the inner ear that detects changes in gravity and linear acceleration, playing a key role in balance.

Ossicles

Small bones in the middle ear (malleus, incus, stapes) that transmit sound vibrations to the inner ear.