Field of NoThingness - spl BiNal

Find the equivalent capacitance of the following combination as shown in the figure. In which $C_1 = C_2 = C_3 = C_4 = C_5 = 100 \; \mu F$

A thundercloud and the earth can be regarded as a parallel plate capacitor. Taking the area of the thundercloud to be $50 \;km^2$, its height above the earth as $1\; km$ and it's potential $100\; KV$, calculate the energy stored.

Two capacitors of capacitance $4 \mu F$ and $12 \mu F$ respectively are connected in series and the combination is connected momentarily across a $200\; V$ battery. The charged capacitors are now isolated and connected in parallel, similar charged plates being connected together. Calculate the common potential.

What distance should the two plates each of area $2 * 10^2 \;m^2$ of an air capacitor be placed in order to have the same capacitance as a spherical conductor of radius $0.5\;m$?

A sheet of paper $40\;mm$ wide and $1.5 * 10^{-2}\;mm$ thick between metal foil of the same width is used to make a $2.04 \mu F$ capacitor. If the dielectric constant of the paper is $2.5 $, what length of the paper is required?

In the given capacitors circuit applied potential between $a$ and $b$ is $220\; V$. What is the equivalent capacitance of the network between $a$ and $b$? Given $C_1 = C_5 = 8.4 \mu F$ and $C_2 = C_3 = C_4 = 4.2\mu F$.

Making Sense of Quantum Physics

A parallel plate air capacitor has a plate separation of $5\;mm$ and is charged to a potential difference of $400\; V$. Calculate the energy density in the region between the plates.

Three capacitors of 1μF , 2μF and 3μF are connected first in series. The same capacitors are again connected in parallel. Compare their equivalent capacitance. Which one of these combinations gives a larger value of capacitance.

Two spheres of radii $5\; cm$ and $10\;cm$ are given charges $100\;C$ and $50\;C$ respectively and then connected by a wire. Calculate the loss of energy after connection.

Eight drops of water of the same size are equally and similarly charged. They combine together to form a bigger drop. Compare the capacitances of a bigger drop with that of the smaller drop.

Two capacitors of capacitances $4\mu F$ and $6\mu F$ respectively are joined in series with a battery of emf $60\; V$. The connections are broken and the like terminals of the capacitors are then joined. Find the final charge on each capacitor.

A parallel plate air capacitor has a capacitance of $10^{-9} \; F$. What potential difference is required for a charge of $5 * 10^{-5}\;C$ ? What is the total energy stored in it?

The beauty of Flower - Richard Feynman

Infinite Journey (Let's see the Invisible)

A parallel plate capacitor with air as the dielectric has a capacitance of 6∗10−4μF and is charged by a 100V battery. Calculate the charge and the energy stored in the capacitor.

Two capacitors of capacitances 4μF and 12μF respectively, are connected in series. The combination is then connected momentarily across a 200V battery. Find the charge and potential difference across each capacitor.

Two capacitors of capacitances 5μF and 15μF respectively are connected in series with a battery of 220V . Find the charge and potential across each capacitor.

A parallel plate air capacitor of capacitance 245∗10−12F has a charge of magnitude 0.148μF on each plate. Find the potential difference and electric field intensity between the plates if the distance between plates is 5mm .

A 300V battery is connected across capacitors of 3μF and 6μF in parallel. Calculate the energy stored in each capacitor.