EASY
12th ICSE
IMPORTANT
Earn 100

The capacitance of a spherical conductor is 1μF. What is its diameter?

Important Questions on Capacitors and Dielectrics

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 3
A PD of 250 V exists across the plates of a 25μF capacitor. Find the charge on each plate.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 4
What distance d Between the two parallel plates, each of area A = 0.0314 m2, of an air capacitor be kept so that its capacitance is same as of a conducting sphere of radius a = 0.5 m?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 5
An air parallel-plate capacitor has a plate area of 6 × 10-3 m2 and a plate separation of 3 mm. Calculate its capacitance. If this capacitor is connected to a 100 V supply. What is the charge on each plate of the capacitor ? 
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 6
The area of each plate of a parallel-plate capacitor is 100 cm2 and the distance between them is 0.05 cm. When it is filled with a dielectric, its capacitance becomes 3.54 x 10-10 F. Find the dielectric constant.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 7
How much area of paper will be required to construct a parallel-plate capacitor of 0.004 μF, if the dielectric constant of the paper be 2.5 and its thickness be 0.025 mm?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 8
We have a glass slab (K = 7) 4.0 mm thick, a mica foil (K = 6) 0.20 mm thick and an amber plate (K = 2) 2.0 cm thick. Which one be placed between the plates of a parallel-plate capacitor to obtain maximum capacitance ?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 9
The potential difference between the plates of a parallel-plate capacitor is 200 V The area of each plate is 100 cm2 And the distance between them is 1 mm. If the medium between them is air, then calculate the charge taken by the capacitor. IF there is a medium of dielectric constant 2.5 Between the plates, then what will be the potential difference for the same charge?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 10
A paper is placed between two plates of copper, area of each 100 cm2. The thickness of the paper is 0.005 cm and its dielectric constant is 2.5. If the paper can bear an electric field of 5 x 105 V/cm, then calculate the maximum voltage up to which the capacitor can be charged. How much charge will be stored on the capacitor?