The Xy Plane Is "Painted" with a Uniform Surface Charge

question 22

Multiple Choice

The xy plane is "painted" with a uniform surface charge density which is equal to 40 nC/m². Consider a spherical surface with a 4.0-cm radius that has a point in the xy plane as its center. What is the electric flux through that part of the spherical surface for which z > 0?

• A) 14 N ⋅ m²/C
• B) 11 N ⋅ m²/C
• C) 17 N ⋅ m²/C
• D) 20 N ⋅ m²/C
• E) 23 N ⋅ m²/C

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