Compute the electric field at a point 4.5 cm from q2 along a line running toward

Question

Compute the electric field at a point 4.5 cm from q2 along a line running toward q3 in the figure (Figure 1) .

"I solved it, but the process was SO long. The way I did it, I computed q1,q2, q3, q4 individually and then did the tangent of each individually, BLAH BLAH. After a while it got confusing, and was just time comsuming. I need to know a "Shortcut" way to solve this for my test. I just wanted to see how you would solve this problem."

Rework for Practice You completed this assignment. C Exercise 15.37 Part A Compute the electric field at a point 4.5 cm from q2 along a line running toward qs in the figure (Figure 1) Enter the x and y components of the field separated by a comma. | E,, E,--3.8x 106,6.4x 107 N/C Submit My Answers Give Up Correct of 1 Provide Figure 1 9110 uC q2 =-10pC 0.10 m 0.10 m 0.10 m 0.10 m 94 = +5.0 C qs = +5.0 C

Explanation / Answer

At the given point,

calculate E1,E2,E3 and E4.

and also calculate angles made by all these elctric field vectors with +x axis.

then take x and y componets of all these electric field vectors.

then add all the components.

Enetx = E1x + E2x + E3x + E4x

ass all the y-components

Enety = E1y + E2y + E3y + E4y

There is no shortcut method to solve this kind of problems.

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