11.A test charge produced an electric field, E, at point 3 m away from the charge. The point where the field is
half its original values is located at
a.1.5 m from the charge
c.4.5 m from the charge
b.6 m from the charge
d.at the point of charge
12. The electric field of a body is directly related to its
a.momentum
b.kinetic energy
c.potential energy d.charge it carries
13. Charge q1 (26.0 pC) and q2 (-47.0 PC) experienced an electrostatic force of 5.70 N between them at a
distance of
a. 1.39 m
b.1.93 m
c.2.14 x 10-19
d.1.464 x 10-8
14.How many electrons have been removed from a positively charged particle if it has a net charge of 5 x 10-
9 C?
a.5 x 10-9 electrons
c.1 x 10-8 electrons
b.2.5 x 10-9 electrons
d.incomplete information
15.A sphere of radius 0.05 m has a charge of 2.0 nC. The charge is said to be located at the center of the
sphere. The magnitude of electric field inside the surface is
c.thrice the original value
a zero
b.twice the original value
d.half the original value​