A Conducting Sphere of Radius 20 Cm Has a Charge

question 15

Multiple Choice

A conducting sphere of radius 20 cm has a charge Q placed on it producing a field of magnitude E₀ at its surface. More charge is added to the surface until the magnitude of the field at the surface is 2 E₀. If the potential at the surface was V₀ when the field was E₀, what is the potential when the field is 2 E₀?

• A) V₀/2
• B) 2 V₀
• C) 4 V₀
• D) 5 V₀
• E) 16 V₀

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Definitions:

Horizontal Syncline

A geological fold with layers that dip towards the center from both sides, and typically have a horizontal or nearly horizontal axis.

Thrust Fault

A reverse fault that has a gentle dip.

Monocline

A fold defined by local steepening in gently dipping layers.

Anticline

A type of fold in sedimentary strata that resembles an arch, with the oldest rocks at its core.