Electrostatics ...

A parallel plate air capacitor is capacitor to a potential difference of V. After disconnecting the battery, distance between the plates of the capacitor is increased using an insulating handle. As a result, the potential difference between the plates

A 10pF capacitor is connected to a 50 V battery. How much electrostatic energy is stored in the capacitor?

If a slab of insulating material 4 × 10^–3m thick is introduced between the plates of a parallel plate capacitor, the separation between plates has to be increased by 3.5 × 10^–3m to restore the capacity to original value. The dielectric constant of the material will be

When a dielectric material is introduced between the plates of a charged condenser then electric field between the plates

A 40µF capacitor in a defibrillator is charge to 3000.V The energy stored in the capacitor is sent through the patient during a pulse of duration 2 ms. The power delivered to the patient is

Two metallic spheres of radii 1 cm and 2 cm are given charges 10^–2 C and 5 × 10^–2 C respectively. If they are connected by a conducting wire, the final charged onthe smaller sphere is

The capacity of a parallel plate condenser is 15µF, when the distance between its plates is 6 cm. If the distance between the plates is reduced to 2 cm, then the capacity of this parallel plate condenser will be

When we touch the terminals of a high voltage capacitor, even after a high voltage been cut off, then the capacitor has a tendency to

What is the value of capacitance if the thin metallic plate is introduced between two parallel plated of area A and separated at distance d?

The capacity of a parallel plate capacitor with no dielectric substance but with a separation of 0.4 cm is 2µF. The separation is reduced to half and it is filled with a dielectric substance of value 2.8. The final capacity of the capacitor is