A Charge Q Is Positioned at the Center of a Sphere

question 32

Multiple Choice

A charge Q is positioned at the center of a sphere of radius R. The flux of the electric field through the sphere is equal to Φ. If the charge Q is now placed at the center of a cube the flux of the electric field through the surface of the cube is equal to

• A)Φ/2.
• B)Φ.
• C)2Φ.
• D)0.
• E)The value of the flux depends on the dimensions of the cube.

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Definitions:

Distal Tubule

A portion of the nephron in the kidney that plays a crucial role in the regulation of potassium, sodium, calcium, and pH levels in the urine.

Plasma Proteins

Proteins present in blood plasma, including albumin, globulins, and fibrinogen, that perform essential roles in blood clotting, defense against pathogens, and transport of substances.

Erythrocytes

Red blood cells that carry oxygen from the lungs to the body's tissues and carbon dioxide back to the lungs.

Glucose

A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.