Electrostatics ...

Four condensers each of capacity 4 µF are connected as shown in figure. V_P– V_Q = 15 volts. The energy stored in the system is

Two capacitors each of 1µF capacitance are connected in parallel and are then charged by 200 volts d. c. supply. The total energy of their charges (in joules) is

In an adjoining figure are shown three capacitors C₁, C₂ and C₃ joined to a battery. The correct condition will be (Symbols have their usual meanings)

Two condensers of capacity 0.3µF and0.6µF respectively are connected in series. The combination is connected across a potential of 6 volts. The ratio of energies stored by the condensers will be

Three capacitances of capacity 10µF, 5µF and 5µF are connected in parallel. The total capacity will be

Three capacitors of capacity C₁, C₂, C₃ are connected in series. Their total capacity will be

Five capacitors, each of capacitance value C are connected as shown in the figure. The ratio of capacitance between P and R and the capacitancebetween P and Q, is

A capacitor of capacity C₁ is charged to the potential of V₀. On disconnecting with the battery, it is connected with a capacitor of capacity C₂ as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be

The capacities of two conductors are C₁ and C₂ and their respective potentials are V₁ and V₂. If they are connected by a thin wire, given by