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Electric potential and Field Lines 
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#1
Jan2513, 06:32 PM

#2
Jan2513, 10:09 PM

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I think this is a judgement call  whatever you decide, you'll have to justify it with some kind of argument. If it is not, then the direction is towards the nearest lower potential line. To see what I mean  try sketching in equipotential lines for 182 and 184 and 186 Volts. 


#3
Jan2613, 02:58 AM

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I guess the issue I am having with C is that I need to examine the magnitudes of the electric fields at each point to determine a convenient scale to show the electric fields as vectors on the map (This is my fault in not including in the original problem). This is why I am having issues with the magnitude at point C being zero. I have for point A, (170160)/1.2= 8.3. Point B I have (190180)/0.5= 20. (Both answers being in V/cm).I am assuming that the magnitude for C equals zero because the field line does not increase past 180 (Like being on top of a hill). So the issue I am having is that any convenient scale I draw for V/cm will contradict any line I draw for the electric field for point C.
As for part B, I am thinking that the fact that the lines are not uniform does not matter since the electric field is conservative. 


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Jan2613, 04:15 AM

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Electric potential and Field Lines



#5
Jan2613, 04:51 AM

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For part (b)  consider that you have figured out the potential at points A and B in part (a) and how, the field being conservative, the path you choose from A to B affects the amount of work needed. 


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