Moving point charge
The above diagram shows the moving path of a point charge
A
which receives the electric force from a fixed point charge
which is positively charged. The distances between
B
and the two points
p
and
q
are
and
respectively. Which of the following statements is correct?
a) The point charge
A
is negatively charged.
b) The electric potential exerted by the point charge
B
at the point
p
is higher than that at the point
q
.
c) The magnitude of the electrostatic force acting on the point charge
B
at the point
p
is greater than that at the point
q
.
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1 solution
just apply the formula \boxed{Kq1q2/r^2}