A point charge is fixed at the origin

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

A point charge

+4\,\mu\text{C}

is fixed at the origin. A second charge

Q

is kept at the point

(0,6\,\text{cm})

on the

y

-axis. The force experienced by the charge at the origin is found to be

0.10\,\text{N}

directed along the negative

y

-axis. What is the sign of the charge

Q

? (a)

\text{Negative}

(b)

\text{Positive}

(c)

\text{Either positive or negative depending on its magnitude}

(d)

\text{Zero}