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qUESTIONS

If the equivalent capacitance between A and B of the combination of capacitors shown in figure is 3C, the capacitor C’ is equal to

The capacities of three capacitors are in the ratio 4 : 3 : 2. Their equivalent capacity when connected in parallel is 105/13 µF more than that when connected in series. The individual capacitors are of values in µF as

A hollow cylinder has a charge q coulomb distributed uniformly within it. If ϕ is the electric flux in units of voltmeter associated with the curved surface B, the flux linked with the plane surface A will be

Two condensers C₁ and C2 in circuit are joined as shown. The potential of point A is V₁ and that of B is V₂. The potential of point D will be

A charge Q µC is placed at the centre of a cube. If ∈0 is the permittivity of vacuum then the flux through one face and two opposite faces of the cube is respectively

A parallel plate air filled capacitor of capacitance ‘C’ has plate area ‘A’ and the distance between the plates ‘d’. When a metal sheet of thickness d/2 and of the area ‘A’ is introduced between the plates, its capacitance become ‘C2’. The ratio C2 : C1, is

A parallel combination of three condensers of capacities ‘2C’, ‘C’ and ‘C/2’ is connected across 10 V battery. All the condensers are fully charged to charges ‘Q1’, ‘Q2’ and ‘Q3’ respectively. Then the ratio Q1: Q2: Q3 is:

A parallel plate capacitor with air between the plates has capacitance of 12µF. If the distance between the plates is reduced to half and space between them is filled with a substance of dielectric constant 4, then new capacitance will be

The force between the plates of a parallel plate capacitor of capacitance ‘C’ and distance of separation of the plates ‘d’ with a potential difference ‘V’ between the plates is

Four indentical condensers are connected in parallel and then in series. The ratio of equivalent capacitance in series to that in parallel combination is

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