A Spherical Shell of Radius 9

question 83

Multiple Choice

A spherical shell of radius 9.0 cm carries a uniform surface charge density σ = 9.0 nC/m². The electric field at r = 4.0 cm is approximately

• A) 0.13 kN/C.
• B) 1.0 kN/C.
• C) 0.32 kN/C.
• D) 0.75 kN/C.
• E) zero.

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