A Thin, Circular Disk of Radius 30

question 8

Multiple Choice

A thin, circular disk of radius 30.0 cm is oriented in the yz-plane with its center at the origin. The disk carries a total charge of +3.00 μC distributed uniformly over its surface. Calculate the magnitude of the electric field due to the disk at the point x = 15.0 cm along the x-axis. (ε0 = 8.85 × 10^-12 C²/N ∙ m²)

• A) 9.95 × 10⁵ N/C
• B) 4.98 × 10⁵ N/C
• C) 3.31 × 10⁵ N/C
• D) 2.49 × 10⁵ N/C
• E) 1.99 × 10⁵ N/C

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Definitions:

Direct Materials Cost

The expense associated with raw materials directly incorporated into a finished product.

Break-even Point

Break-even Point is the financial analysis term that indicates when total costs and total revenues are exactly equal, resulting in neither profit nor loss.

Mixed Costs

Costs with both variable and fixed characteristics, sometimes called semivariable or semi-fixed costs.

Variable Components

Parts of a cost or expense that change in proportion with changes in the level of business activity or production volume.