Question

A positively charged object will:A.have no effect on a negative charge.B.exert a pulling force on another positively charged object.C.attract a negatively charged object.D.have no effect on another positive charge.

Answer 1

When a positively charge object is at a distance of a negatively charged object then an attractive force between them is exerted. The magnitude of that force is give by:

$F=k\frac{q_1q_2}{r^2}$

Where:

$\begin{gathered} F=\text{ force} \\ k=\text{ Coulomb's constant} \\ q_1,q_2=\text{ charges} \\ r=\text{ distance} \end{gathered}$

therefore, the right answer is C.