A Large, Flat Conducting Plate Has a Surface Charge Density

question 108

Multiple Choice

A large, flat conducting plate has a surface charge density σ = 8.0 × 10^-9 C/m² on one of its surfaces. What is the magnitude of the electric field 10 µm from this plate?

• A) 72 N/C
• B) 0.23 kN/C
• C) 0.90 kN/C
• D) 90 MN/C
• E) 9.0 × 10¹² N/C

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