1.
A parallel plate capacitor with air as the dielectric has capacitance A slab of dielectric constant and having the same thickness as the separation between the plates is introduced so as to fill one-fourth of the capacitor as shown in the figure. The new capacitance will be
2.
In the given network, the value of , so that an equivalent capacitance between and is
3.
If the electric flux entering and leaving an enclosed surface respectively is and , then, charge enclosed in closed surface is
4.
Three capacitors 2, 3 and 6 are joined with each other. What is the minimum effective capacitance?
5.
Effective capacitance between points in the figure, shown is
6.
A metallic solid sphere is placed in a uniform electric field. The lines of force follow the paths shown in figure
7.
A parallel plate capacitor of capacitance 100 pF is to be constructed by using paper sheets of 1 mm thickness as dielectric. If the dielectric constant of paper is 4, the number of circular metal foils of diameter 2 cm each required for the purpose is
8.
Identify the wrong statement.
9.
In the following diagram the work done in moving a point charge from point P to point A, B and C is respectively as then
10.
Two parallel plates of area are separated by two different dielectric as shown in figure. The net capacitance is