Electrostatic P...

The net charge on a condenser is :

$$n$$ equal capacitors are first connected in series and then in parallel. The ratio of capacitances in series and parallel arrangements will be :

Three identical capacitors, each of capacitance $$C$$, are connected in series with a battery of emf $$V$$ and get fully charged. Now, the battery is removed and the capacitors are connected in parallel with positive terminals are one point and negative terminals at other point. Then, the common potential will be :

A slab X is placed between the two parallel isolated charged plates as shown in the figure. If $$E_p$$ and $$E_q$$ denotes the intensity of electric field at P and Q, then :

Seven capacitors each of capacitance $$2\mu F$$ are to be connected in a configuration to obtain an effective capacitance of $$10/11 \mu F$$. Which of the following combination(s) shown below will archive the desired result ?

A person has only two capacitors. By using them singly, in parallel or in series, he is able to obtain the capacitance $$2\mu F, 3\mu F, 6\mu F $$ and  $$9\mu F$$. What are the capacitance of the capacitors?

Seven capacitors, each of capacitance $$2\mu F$$, are to be combined to obtain a capacitance of $$\dfrac{10}{11} \mu F$$. Which of the following combinations is possible ?

Find the capacitance between $$P$$ and $$O$$ as shown in the figure. Each capacitor has capacitance $$C$$ :

Arrangement of parallel plate capacitors is shown in the figure. All the plates are of same area a and placed at same distance d apart. If ends x and w are joined together through a conductor, net capacitance at terminals P and Q is given by :

Two identical parallel plate capacitors are connected in series and then joined in series with a battery of $$100V$$. A slab of dielectric constant $$K=3$$ is inserted between the plates of the first capacitor. Then, the potential difference across the capacitors will be respectively,