A charge of $Q$ coulomb is placed on a solid piece of metal of irregular shape. The charge will distribute itself
Uniformly in the metal object
Uniformly on the surface of the object
Such that the potential energy of the system is minimised
Such that the total heat loss is minimised
Two equal negative charge $-q$ are fixed at the fixed points $(0,\,a)$ and $(0,\, - a)$ on the $Y$-axis. A positive charge $Q$ is released from rest at the point $(2a,\,0)$ on the $X$-axis. The charge $Q$ will
Identify the wrong statement in the following. Coulomb's law correctly describes the electric force that
Two insulated charged copper spheres $A$ and $B$ have their centres separated by a distance of $50 \;cm$. the charge on each is $6.5 \times 10^{-7}\; C?$ Suppose the spheres $A$ and $B$ have identical sizes.A third sphere of the same size but uncharged is brought in contact with the first, then brought in contact with the second, and finally removed from both. What is the new force of repulsion between $A$ and $B?$
Explain the superposition principle for static electric forces and write its general equation.
A charge $+q$ is situated at a distance $d$ away from both the sides of a grounded conducting $L$ shaped sheet as shown in the figure.The force acting on the charge $+q$ is