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प्रश्न
What meaning would you give to the capacitance of a single conductor?
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उत्तर
The capacitance of a single conductor is considered as a parallel plate capacitor with one of its two plates at infinity.
संबंधित प्रश्न
A parallel plate capacitor with air between the plates has a capacitance of 8 pF (1pF = 10−12 F). What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6?
Net capacitance of three identical capacitors in series is 2 μF. What will be their net capacitance if connected in parallel?
A parallel plate capacitor is being charged by a time varying current. Explain briefly how Ampere’s circuital law is generalized to incorporate the effect due to the displacement current ?
When a dielectric slab is gradually inserted between the plates of an isolated parallel-plate capacitor, the energy of the system decreases. What can you conclude about the force on the slab exerted by the electric field?
A dielectric slab is inserted between the plates of an isolated capacitor. The force between the plates will
A parallel plate air capacitor has a capacitance of 5 μF. It becomes 50 μF when a dielectric medium occupies the entire space between its two plates. What is the dielectric constant of the medium?
Define the dielectric constant of a medium. What is its S.I unit?
In a parallel plate air capacitor the distance between plates is reduced to one-fourth and the space between them is filled with a dielectric medium of constant 2. If the initial capacity of the capacitor is 4μF then its new capacity is ______.
Figure shows plot of charge versus potential difference for four parallel plate capacitors, which have same plate area, dielectric medium but different distance between the plates. Which one of them have smallest plate distance?
A parallel plate capacitor has a uniform electric field `overset(->)("E")` in the space between the plates. If the distance between plates is 'd' and the area of each plate is 'A', the energy stored in the capacitor is ______
(ε0 = permittivity of free space)
Four capacitors of equal capacity have an equivalent capacitance C1 when connected in series and an equivalent capacitance C2 when connected in parallel. The ratio `c_2/c_1`, is ______
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates ______.
A parallel plate capacitor with air between the plates has a capacitance of 8 pF. Calculate the capacitance if the distance between the plates is reduced by half and the space between them is filled with a substance of dielectric constant. (εr = 6)
A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect?
In a capacitor of capacitance 20 µF the distance between the plates is 5 mm. If a dielectric slab of width 2 mm and dielectric constant 3 is inserted between the plates, then the new capacitor will be ______.
The capacity of the parallel plate condenser depends on ______
Two infinitely long parallel conducting plates having surface charge densities +σ cand -σ respectively are separated by a small distance. The medium between the plates is a vacuum. If ε0 is the dielectric permittivity of the vacuum, then the electric field in the region between the plates is ______.
The equivalent capacitance between the point A and B as shown in figure will be ______.
