196Chapt. 25Electric Potentialwhereλis the linear charge density. What happens if either ofRgoes to infinity or zero?How is the resulting problem avoided in practice?c) The potential difference for an infinite plane of charge between pointsvectorrandvectorr0which isa vector in the plane is chosen as the zero point for the potential.Thezdirection isperpendicular to the plane. Recall the electric field for an infinite plane of charge isvectorE=±σ2ε0ˆz,whereσis the area charge density and upper case for the positivezside of space and lowercase is for the negativezside of space. What happens ifz(thezcomponent ofvectorr) goes toinfinity? How is the resulting problem avoided in practice?025 qfull 00300 2 3 0 moderate math: PE of uniform charged ball5. You have uniformly charged sphere of chargeQand radiusR. We’re going to find the potentialENERGYof this charge assembly (relative to zero when all the charge bits are at infinityrelative to each other).
This is the end of the preview.
access the rest of the document.