Advertisements
Advertisements
प्रश्न
Define ‘capacitance’. Give its unit.
Advertisements
उत्तर
- It is defined as the ratio of the magnitude of the charge on either of the conductor plates to the potential difference existing between the conductors.
- Unit: farad (or) `"C"/"V"`
APPEARS IN
संबंधित प्रश्न
Suppose, one wishes to construct a 1⋅0 farad capacitor using circular discs. If the separation between the discs be kept at 1⋅0 mm, what would be the radius of the discs?
A cylindrical capacitor is constructed using two coaxial cylinders of the same length 10 cm and of radii 2 mm and 4 mm. (a) Calculate the capacitance. (b) Another capacitor of the same length is constructed with cylinders of radii 4 mm and 8 mm. Calculate the capacitance.
Each capacitor shown in figure has a capacitance of 5⋅0 µF. The emf of the battery is 50 V. How much charge will flow through AB if the switch S is closed?

Consider the situation shown in the figure. The switch S is open for a long time and then closed. (a) Find the charge flown through the battery when the switch S is closed. (b) Find the work done by the battery.(c) Find the change in energy stored in the capacitors.(d) Find the heat developed in the system.

Three capacitors are connected in a triangle as shown in the figure. The equivalent capacitance between points A and C is ______.

Derive the expression for resultant capacitance, when the capacitor is connected in series.
Dielectric constant for a metal is ______.
Obtain the equivalent capacitance of the network shown in the figure. For a 300 V supply, determine the charge on each capacitor.
Calculate equivalent capacitance of the circuit shown in the Figure given below:

Two spherical conductors of capacities 4 µF and 3 µF are charged to same potential having radii 4 cm and 3 cm respectively. If ‘σ1’ and ‘σ2’ represent surface density of charge on respective conductors then ______.
