Electrostatic P...

The equivalent capacitance between the point s $$A$$ and $$B$$ in the given diagram is

For spherical symmetrical charge distribution, variation of electric potential with distance from centre is given in diagram. Given that:-
$$V = \dfrac{q}{4 \pi \varepsilon_0 R_0}$$ for $$r \ R_0$$ and $$V = \dfrac{q}{4 \pi \varepsilon_0 r}$$ for $$ r \geq R_0$$.
Then which option is incorrect:

in a certain region of free space a non-uniform electric field which depends on x-coordinates is given by $$\vec E = E_0 x \hat i$$. What is the total amount of electric potential energy contained within the cube of sides of length L as shown below?

In the given circuit shown in the figure, what will be the charge stored in the capacitor of capacity $$5 \mu F$$ ?

In the given circuit, the effactive capacitance between $$A$$ and $$B$$ will be

The equivalent capacitance of the combination shown in figure is:

Four charges $$1$$ mc, $$2$$ mc, $$3$$ mc, ...$$6$$ mc are placed on at corner of a square of side $$1$$m. The square lies in XY plane with its centre at origin

In the adjacent figure, find the capacitance between points $$A$$ and $$B$$ if area of each plate is $$A$$ and separation between the plates is $$d$$.

The charge after flow through circuit is after switch is closed 

A $$3\mu F$$ capacitor up to $$300\ volt$$ and $$2\mu F$$ is charged up to $$200\ volt$$. The capacitor are connected so that the plates of same polarity are connected together. The final potential difference between the plates of the capacitor after they are connected is :