Electrostatic P...

Three capacitors of capacitance $$1.0,2.0$$ and $$5.0\mu F$$ are connected in series to a $$10V$$ source. The potential difference across the $$2.0\mu F$$ capacitor is

A metal plate of thickness $$d/2$$ is introduced in between the plates of a parallel plate air capacitor with plate separation of $$d$$. Capacity of the metal plate :

An electron enters into a space between the plates of parallel plate capacitor at an angle of $$\alpha$$ with the plates and leaves at an angle of $$\beta$$ to the plates. The ratio of its $$KE$$ while leaving to entering the capacitor will be :

Given below are three schematic graphs of potential energy $$V(r)$$ versus distance $$r$$ for three atomic particles: electron $$(e^{-})$$, proton $$(p^{+})$$ and neutron $$(n)$$, in the presence of a nucleus at the origin $$O$$. The radius of the nucleus is $$r_{0}$$. The scale on the V-axis may not be the same for all figures. The correct pairing of each graph with the corresponding atomic particle is.

How many $$6\mu F$$, $$200 V$$ condensers are needed to make a condenser of $$18\mu F$$, $$600 V$$?

The minimum value of effective capacitance that can be obtained by combining $$3$$ capacitors of capacitances $$1 pF$$, $$2 pF$$ and $$4 pF$$ is

Two identical parallel plate capacitance C each are connected in series with a battery of emf, E as shown, If one of the capacitors is now filled with a dielectric of dielectric constant k, the amount of charge which will flow through the battery is $$?$$(neglect internal resistance of the battery)

A charge $$10nC$$ is situated in a medium of relative permittivity $$10$$. The potential due to this charge at a distance of $$0.1 m$$ is :

An insulator plate is passed between the plates of a capacitor. Then, current :

Two charges $$+6\mu C$$ and $$-4\mu C$$ are placed $$15 cm$$ apart as shown. At what distances from $$A$$ to its right, the electrostatic potential is zero?