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Unformatted text preview: P =0. This means that 1. no force is acting on a test charge placed at point P 2. Q and q must have the same sign 5 3. the electric field must be zero at point P 4 the net work in bringing Q to a distance d from q is zero 5 the net work needed to bring a charge from infinity to the point P is zero. 5: An infinite plane of positive charge has surface charge density C/m 2 . The electric field for this charge distribution is: 1 perpendicular to and outwards from the surface with strength E= / . 2. perpendicular to and inwards to the surface with strength E= / . 4 3. perpendicular to and inwards to the surface with strength E= /2 . 4 perpendicular to and outwards from the surface with strength E= /2 . 5 parallel to the surface with strength E= / ....
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 Spring '08
 Jordan
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