A Large,flat Conducting Plate Has a Surface Charge Density $\sigma$ = 80

question 16

Multiple Choice

A large,flat conducting plate has a surface charge density $\sigma$ = 8.0 $\times$ 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 \(\times\) 10¹² N/C

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