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Introductory Physics Homework Help
Calculating Electric Flux Through a Rectangle with Given Electric Field
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[QUOTE="arileah, post: 5528401, member: 600025"] [h2]Homework Statement [/h2] Hello, A 3.60cm x 4.50cm rectangle lies in the xy-plane. What is the electric flux through the rectangle if E=(80.0i + 50k) N/C ?[h2]Homework Equations[/h2] Φ = E * A =EAcos(θ) [h2]The Attempt at a Solution[/h2] My attempt: First convert the rectangle units from cm to m. 4.50cm = 0.045m 3.60cm = 0.036m Find the area of the rectangle. A = 0.036m x 0.045m = 0.00162 m^2 Find the magnitude of the electric field. E = sqrt (50^2 + 80^2) = 94.34 N?C (aprox.) Multiply the two, electric flux = E * A = 0.15283 Nm^2 / C (aprox.) However, this answer is wrong. Could anyone point me in the right direction? I am not sure how to incorporate the cosine into this. Thank you. [/QUOTE]
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Calculating Electric Flux Through a Rectangle with Given Electric Field
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