The diagrams depict four different charge distributions. All the charged particles are at same distance from origin $(i.e. OA = OB = OC = OD)$ $F_1$ , $F_2$ , $F_3$ and $F_4$ are the magnitude of electrostatic force experienced by a point charge $q_0$ kept at origin in figure $-1$ , figure $-2$ , figure $-3$ and figure $-4$ respectively. Choose the correct statement.
$F_1 > F_2 > F_3 > F_4$
$F_1 < F_2 < F_3 < F_4$
$F_1 > F_3 > F_2 > F_4$
$F_3 > F_1 > F_4 > F_2$
Two positive charges of $20$ $coulomb$ and $Q\;coulomb$ are situated at a distance of $60\,cm$. The neutral point between them is at a distance of $20\,cm$ from the $20\,coulomb$ charge. Charge $Q$ is.....$C$
Explain the superposition principle for static electric forces and write its general equation.
In general, metallic ropes are suspended on the carriers which take inflammable material. The reason is
Two spherical, nonconducting, and very thin shells of uniformly distributed positive charge $Q$ and radius d are located a distance $10d$ from each other. A positive point charge $q$ is placed inside one of the shells at a distance $d/2$ from the center, on the line connecting the centers of the two shells, as shown in the figure. What is the net force on the charge $q $ ?
Identify the wrong statement in the following. Coulomb's law correctly describes the electric force that