A Point Charge +Q Is Located on the X Axis

question 38

Multiple Choice

A point charge +Q is located on the x axis at x = a, and a second point charge -Q is located on the x axis at x = -a.A Gaussian surface with radius r = 2a is centred at the origin.The flux through this Gaussian surface is:

• A)zero because the negative flux over one hemisphere is equal to the positive flux over the other.
• B)greater than zero.
• C)zero because at every point on the surface the electric field has no component perpendicular to the surface.
• D)zero because the electric field is zero at every point on the surface.
• E)none of the above.

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Definitions:

Physical Weathering

The breakdown of rocks and minerals into smaller pieces by physical forces without changing their chemical composition.

Debris Flow

A moving mass of loose mud, sand, soil, rock, and water that travels down a slope under the influence of gravity.

Outer Weathered Zone

The outermost layer of Earth's surface that has been altered by weathering processes like wind, water, and chemical actions.

Preferential Weathering

The process where different parts of a rock weather at different rates due to variations in composition, strength, or permeability.