Two Large Equipotential Surfaces Are Flat and Parallel, and They

question 12

Multiple Choice

Two large equipotential surfaces are flat and parallel, and they are separated by a relatively small distance compared to their size. One surface is at 25 V and the other is at 33 V. The surfaces are 1.25 cm apart. Assuming the electric field is uniform between the surfaces, what is the direction of the electric field midway between them?

• A) The field is parallel to the surfaces.
• B) The field is perpendicular to the surfaces and points toward the 33 V surface.
• C) The field is perpendicular to the surfaces and points toward the 25 V surface.
• D) The field makes clockwise circles, viewed from the 33 V surface.
• E) The field makes clockwise circles, viewed from the 25 V surface.

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