Electrostatic P...

Among identical spheres A and B having charges $$-15\ C$$ and $$-16\ C$$:

Three condenser of capacitance $$C(\mu F)$$ are connected in parallel to which a condenser of capacitance $$C$$ is connected in series. Effective capacitance is $$3.75$$, then capacity of each condenser is

A parallel plate capacitor with a dielectric slab of dielectric constant $$3$$, filling the space between the plates, is charged to a potential $$ V$$. The battery is then disconnected and the dielectric slab is withdrawn. It is then replaced by another dielectric slab of dielectric constant $$2$$. If the energies stored in the capacitor before and after the dielectric slab is changed are $$\displaystyle { E }_{ 1 }$$ and $$\displaystyle { E }_{ 2 }$$, then $$\displaystyle { E }_{ 1 }/{ E }_{ 2 }$$ is:

In a capacitive circuit, dielectrics materials are placed between the plates of capacitors to

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?

A dielectric is inserted into a capacitor while keeping the charge constant. Identify what happens to the potential difference and the stored energy?

Above, three arrangements of identical capacitors are shown. What is the correct order of total capacitance values for the arrangements, greatest first?

How much power is used in moving a $$0.03C$$ charge from point A at a potential of $$40V$$ to point B at $$60V$$, if this takes 2 seconds?

Calculate the change in potential energy of a particle of charge $$+q$$ that is brought from a distance of $$3r$$ to a distance of $$2r$$ in the electric field of charge $$-q$$?

What is the change in potential energy of a particle of charge +q that is brought from a distance of 3r to a distance of 2r by a particle of charge q?