Experimenter A uses a test charge q0 and experimenter B uses a test charge 2q0 to measure an electric field produced by stationary charges.A finds a field that is:
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:
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:
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:
Two point particles, with charges of q1 and q2, 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:
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:
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: