Quiz1ans - P =0. This means that 1. no force is acting on a...

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P114 QUIZ #1 6 February 2007 PRINT NAME: ___________ WORKSHOP SECTION ____ Write on the left line the letter corresponding to the best answer for each question. 1: The electric field at the surface of a conductor 1. is parallel to the surface 2. depends only on the total charge on the conductor 5 3. depends only on the area of the conductor 4. depends only on the curvature of the surface 5. depends on the area, curvature of the conductor and its total charge 2: Charges +Q and -Q are arranged at the corners of a square as shown. When the electric field E and the potential are determined at P, the center of the square, we find: 1. E 0 and V>0 2. E=0 and V=0 2 3. E=0 and V>0 4. E 0 and V<0 5. none of these is correct 3: Which point in the diagram is at the highest potential? 1. 1 2. 2 5 3. 3 4. 4 5. 5 4: Charges Q and q, (Q q) separated by a distance d, produce at point P a potential with respect to infinity of V
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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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