A uniform electric field is one that has the same magnitude and direction at every point in space as shown in the figure below. E What are some methods to produce a uniform electric field? You can choose one or more than one choice. For example, if the answer is A, enter capital A. If A and B are correct, enter AB both capitals. Order of choices is not important A. Use a point charge B. Use a positive and negative point charge close to each other. C. Use a very large uniformly charged flat sheet. D. Use a charged spherical sphere. E. Use two large uniformly charged flat sheets with equal charge of opposite polarity located close to each other.

A uniform electric field is one that has the same magnitude and direction at every point in space as shown in the figure below. E What are some methods to produce a uniform electric field? You can choose one or more than one choice. For example, if the answer is A, enter capital A. If A and B are correct, enter AB both capitals. Order of choices is not important A. Use a point charge B. Use a positive and negative point charge close to each other. C. Use a very large uniformly charged flat sheet. D. Use a charged spherical sphere. E. Use two large uniformly charged flat sheets with equal charge of opposite polarity located close to each other.

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I keep getting this answer wrong can you help me because I don't understand it. Thank you.
Electric Fields 1. A wire has been given a net positive electric charge Q evenly distributed along its length. The wire has a length of L and is located on the x-axis with its left end at the origin as drawn. Set up the integral you need to do to find the electric field at a distance d to the left of the origin. Some steps you may wish to follow are: a. Figure out the direction the electric field will have at our location x = -d. This will be the same as f b. Write the differential charge dą in terms of the charge per length and a differential length. c. ris a function of x which means we have to integrate to find the electric field. Write down r. d. Put everything together (including the vector direction) into one integral that would allow you to find the E-field. Write this in the box below. e. You are not required to complete the integral and no credit is given for completing the integral. d dE =
Part A Use Coulomb's law to determine the magnitude of the electric field at points A and B in (Figure 1) due to the two positive charges (Q = 4.9 µC ) shown. Suppose that a = 5.9 cm. Determine the magnitude of the electric field at A. Express your answer to two significant figures and include the appropriate units. ? EA = Value Units Submit Request Answer Figure < 1 of 1 Part B Determine the angle between the direction of the electric field at point A and the positive x-direction. B A Express your answer using two significant figures. +Q +Q OA = a a 2a Submit Request Answer
A negatively-charged object creates an electric field which can be measured at various locations in the region about it. An electric field vector is drawn for point X. Use your understanding of the electric field - distance relationship to draw E vectors for points A - E. (The length of the arrow should be indicative of the relative strength of the E vector.)
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3. A positive charge of magnitude q, is shown at the right. Points B and C are a distance ro from the charge and point A is a distance 2r. from it. Let WAB represent the work done by an external agent in moving a small test charge from point A to point B. a. Use an arrow to indicate the direction of the electric field at points A, B, and C. X A X B X C qo b. Would the absolute value of the work done by an external agent in moving the same test charge from point B to point C be greater than, less than, or equal to WAB? Explain. c. Would the absolute value of the work done by an external agent in moving the same test charge from point A to point C be greater than, less than, or equal to WAB? Explain.