MDCAT Physics MCQ #1542

A spherical shell of radius 20 cm carries +8 μC. What is the electric field at 10 cm from the center?

MDCAT Physics MCQ #1542

  1. Question 1

    Q1. A spherical shell of radius 20 cm carries +8 μC. What is the electric field at 10 cm from the center?

    • A) 720 N/C inward
    • B) Zero (conductor interior field)
    • C) 360 N/C outward
    • D) 450 N/C outward

    Answer: Zero (conductor interior field)

    Explanation: Conductors in electrostatic equilibrium have zero interior field. Option C uses Coulomb’s Law incorrectly.