An Ideal Air-Filled Parallel-Plate Capacitor with Horizontal Plates Has a Plate

question 62

Multiple Choice

An ideal air-filled parallel-plate capacitor with horizontal plates has a plate separation of $5.0 \mathrm {~cm}$ . If the potential difference between the plates is $2000 \mathrm {~V}$ , with the top plate at the higher potential, what are the magnitude and direction of the electric field between the plates?

• A) \(40000 \mathrm {~N} / \mathrm { C }\) downward
• B) \(40000 \mathrm {~N} / \mathrm { C }\) upward
• C) \(100 \mathrm {~N} / \mathrm { C }\) upward
• D) \(100 \mathrm {~N} / \mathrm { C }\) downward

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