How to Calculate Electric Flux Through a Tilted Box?

AI Thread Summary
To calculate electric flux through a tilted box in an electric field of 1100 N/C, the equation used is Flux = E * A * cos(θ). The box is tilted at an angle of 19°, affecting the angle used in the flux calculations for each side. The user attempted calculations for side B but received incorrect results, indicating potential confusion about the orientation of the sides and the angle to use. Clarification on which side is the base and how the tilt affects the calculations is needed to resolve the issue. Understanding the correct application of the angle and the orientation of the box is crucial for accurate flux determination.
zooboodoo
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Homework Statement


A empty cardboard box is placed in an electric field pointing upwards with a strength of 1100 N/C as shown above. The bottom of the box is tilted up by an angle Θ = 19° from the horizontal. Side A of the box faces out of the page and is 10 cm high and 14 cm long. Sides B and C are 10 cm high and 12 cm deep. Sides D and E are 14 cm long and 12 cm deep.

calculate flux through each side of the box

Homework Equations


I have the equation Flux=EAcostheta



The Attempt at a Solution


(1100)(120)(cos71) did not give me the right answer, so I thought I would try cos19, but that also didn't work. ( that is for side B) I'm not sure if I'm missing something conceptually, I also tried the negatives for both of these answers, the flux is flowing through the side, to my understanding, i don't see when the flux would NOT be going through the side in order to get a negative result. If someone could help me grasp where I'm going wrong with one of the sides i would greatly appreciate it.
 
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Hi zooboodoo! :smile:

:confused: which is the base of the box? which edge is still on the table? :smile:
 
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