A Spherical Conductor (Radius = 1

question 92

Multiple Choice

A spherical conductor (radius = 1.0 cm) with a charge of 2.0 pC is within a concentric hollow spherical conductor (inner radius = 3.0 cm, outer radius = 4.0 cm) which has a total charge of −3.0 pC. What is the magnitude of the electric field 2.0 cm from the center of these conductors?

• A) 23 N/C
• B) zero
• C) 45 N/C
• D) 90 N/C
• E) 110 N/C

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