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Experimenter A uses a test charge q

_{0}and experimenter B uses a test charge 2q_{0}to measure an electric field produced by stationary charges.A finds a field that is: Multiple Choice

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Two thin spherical shells, one with radius R and the other with radius 2R, surround an isolated charge point particle.The ratio of the number of field lines through the larger sphere to the number through the smaller is:

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A certain physics textbook shows a region of space in which two electric field lines cross each other.We conclude that:

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The diagram shows the electric field lines due to two charged parallel metal plates.We conclude that:

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The diagram shows the electric field lines in a region of space containing two small charged spheres (Y and Z).Then:

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Two protons (p

_{1}and p_{2})are on the x axis, as shown below.The directions of the electric field at points 1, 2, and 3 respectively, are: Multiple Choice

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Let k denote 1/4

_{0}.The magnitude of the electric field at a distance r from an isolated point charge q is: Multiple Choice

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The electric field at a distance of 10 cm from an isolated point particle with a charge of 2 10

^{-9}C is: Multiple Choice

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An isolated point charged point particle produces an electric field with magnitude E at a point 2 m away from the charge.A point at which the field magnitude is E/4 is:

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An isolated charged point particle produces an electric field with magnitude E at a point 2 m away.At a point 1 m from the particle the magnitude of the field is:

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Two point particles, with charges of q

_{1}and q_{2}, are placed a distance r apart.The electric field is zero at a point P between the particles on the line segment connecting them.We conclude that: Multiple Choice

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The diagrams below depict four different charge distributions.The charged particles are all the same distance from the origin.The electric field at the origin:

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The diagram shows a particle with positive charge Q and a particle with negative charge Q.The electric field at point P on the perpendicular bisector of the line joining them is:

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