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Need help with D, and the second part of B. Thank you in advance. A positive cha

ID: 1345790 • Letter: N

Question

Need help with D, and the second part of B. Thank you in advance.

A positive charge of magnitude q0 is shown in the diagram at right. Points B and C are a distance r0 away from the charge, and points A and D are a distance 2r0 from it. On the diagram, indicate the direction of the electric field at each point. Suppose a hand moves a positive test charge from point A. To which of the other points could the charge be moved without doing any net work on the charge? Explain. What is the potential difference from point A to any of the points you identified above? Explain. A set of points that all have the same value of potential are called an equipotential or equipotential surface. What shape are the equipotential surfaces around q0? Explain, and draw a few equipotentials on the diagram above. Let WAB represent the work done by a hand to move a positive test charge from point A to point B, and WAC represent the work done by a hand to move a positive test charse from point A to point C. Is WAB positive, negative, or zero? Would the absolute value of WAB be greater than, less than, or equal to the absolute value of WAC? Explain.

Explanation / Answer

a) It has already been drawn and it is correct.

b) from point A to D.

since the potentail at point A and D are same.


potentail diffrence between point A and D = 0


c) points B and C

points A and D


draw spheraical surfaces with any radius.

every spherucal around a test charge is an equipotentail surface.


d)

i) Positive. since the work should be done against electric force.

ii) greater than zero. because, the value is positive.