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AP Physics C: E&M
8.5 Electric Flux
BeginnerMCQConceptual14.7k
A 2D schematic diagram showing a uniform electric field represented by five evenly spaced horizontal arrows pointing from left to right, labeled with LaTeX glyph \vec{E}. A flat rectangular sheet is shown edge-on, tilted such that its surface makes a 30-degree angle with the horizontal electric field lines. A dashed vector labeled \vec{A} extends perpendicularly outward from the surface of the sheet, forming a 60-degree angle with the horizontal field lines. The angle of 30 degrees between the surface line and the horizontal field line is clearly arc-labeled as 30^{\circ}. No other labels, lines, text, or axes appear.
Uniform electric field vectors passing through a tilted flat rectangular sheet.
A flat rectangular sheet of surface area \(A\) is placed in a region of uniform electric field of magnitude \(E\). The plane of the sheet makes an angle of \(30^\circ\) with the direction of the electric field vector \(\vec{E}\). Which of the following correctly gives the electric flux \(\Phi_E\) through the sheet and the physical justification for how orientation affects the flux?

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