per persson's latest activity
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per persson replied to the thread Formula for Electromotive force?.Sorry I'm completely lost are you talking about example 1 or 2? -
per persson posted the thread Formula for Electromotive force? in Introductory Physics Homework Help.So the formula for emk for a circuit is where f_s is caused by non emf forces like a battery. E is the electricalfield inside the...
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per persson replied to the thread Electromagnetic field theory -- Potential inside a conducting sphere.But what is so special with the centre. I know it is easier to calculate but what makes the centre the point where we can just add...
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per persson replied to the thread Electromagnetic field theory -- Potential inside a conducting sphere.Why is it legit to add the potential of the hemisphere to the potential inside sphere given by b and thus get the solution for c. The...
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per persson replied to the thread Electromagnetic field theory -- Potential inside a conducting sphere.Potential of the hemisphere or the potential given in b? I don't think it matters though since the solution is already given. My problem...
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per persson posted the thread Electromagnetic field theory -- Potential inside a conducting sphere in Introductory Physics Homework Help.The sphere with charge Q is of metall and the question is what its potential is . a and b I've already solved but c is difficult...
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per persson reacted to kuruman's post in the thread Why is the derivative of the potential at a surface assumed to be continuous even though there is surface charge? with
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Where did the equations that you posted come from? Are they supposed to be the solution to the problem you posted or some other problem... -
per persson posted the thread Why is the derivative of the potential at a surface assumed to be continuous even though there is surface charge? in Introductory Physics Homework Help.I don't understand how why the derivative is continuous. Clearly there is a surface charge and by gauss law we should have
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