Electrostatic P...

Four metallic plates each of area A and separated from one another by a distance d are arranged as shown in the figure. What is the capacitance between X and Y ? 

When two identical capacitors are connected in series, the equivalent capacitance is 7.5 $$\mu F$$. What is the equivalent capacitance when they are connected in parallel? 

In the figure a potential of +1200 V is given to point A and point B is earthed,what is the potential at the point P

In the figure shown $$ a+3 \mu c $$ charge and $$ a-2 \mu c $$ charge are placed on the x-axis.in which of the regions on the x-axis is a point where the electrical potential is zero.

The equivalent capacitance between A and B

A capacitor of capacitance $$ 1 \mu F $$ withstands a maximum voltage of 6 kilovolt while another capacitor of $$ 2 \mu F $$ withstands a maximum voltage 4 kilovolt . if the two capacitor are connected in series, the system will withstand a maximum of:

In steady-state, the charge of $$6$$ $$\mu F$$ capacitor is

The polarising angle of a glass slab for green light is $$ 54.75^0 $$. what is the angle of minimum deviation of a ray of green light for an equilateral prism made of the same material as that of the glass slab?
$$( given : \tan 54.75^0 =1.414 ) $$

For section $$AB$$ of a circuit shown in Figure. $$C_1=1\mu F$$, $$C_2=2\mu F$$, $$E=10V$$, and the potential difference $$V_A-V_B=-10V$$. Charge on capacitor $$C_1$$ is

The circuit shown is in state. Electrostatic potential energy stored by the circuit is