A Spherical Shell of Radius 9 $\sigma$ = 90 NC/m²

question 3

Multiple Choice

A spherical shell of radius 9.0 cm carries a uniform surface charge density $\sigma$ = 9.0 nC/m².The electric field at r = 16 cm is approximately

• A)0.32 kN/C
• B)1.0 kN/C
• C)zero
• D)0.13 kN/C
• E)0.53 kN/C

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