Electrostatic P...

The equivalent capacitance between points A and B in the given figure would be :

Find the capacitance between $$P$$ and $$O ( \mathrm { Fig } .4 .172 )$$ . Each capacitor has capacitance C.

A $$5\mu F$$ is charged to $$12\ volt$$. The positive plate of The positive plate of the capacitor is connected to the negative terminal of a $$12\ V$$ battery. Then heat developed in the connecting wire will be: 

A,B,C,D are four large metallic plates carrying charges $$ +4 \mu C, -3 \mu C, 0, \mu C and +2 \mu C $$ placed close and parallel to each other as shown.The charge (in equilibrium) retained upon left side of left most plate is 

$$1\ MeV$$ equals

Four concentric conducting shells A,B,C and D are arranged as shown in figure A charge + q given to the outer most shell D.Shell B and D are connected by conducting wire while shell A and C is earthed.The equivalent capacitance of system is 

A wire, bent into a circle, carries current in an anticlockwise direction. What polarity does this face of the coil exhibit? 

The figure shows a capacitor having three layers of equal thickness and same area is that of plate . Layer first is vaccum , layer second is conductor and layer third is dielectric of dielectric constant $$K$$ . The ratio of energy stored in region three to the total energy stored in capacitor is:

The capacity between the point A and B in the adjoining circuit will be

In the shown network, charges in capacitors are same. Then $$\dfrac{C_1}{C_2}$$ is