MEDIUM

12th ICSE

IMPORTANT

Earn 100

What distance $d$ Between the two parallel plates, each of area $A = 0.0314 m^{2}$ , of an air capacitor be kept so that its capacitance is same as of a conducting sphere of radius $a = 0.5 m$ ?

Important Questions on Capacitors and Dielectrics

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 \times 10^{- 3} m^{2}

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 {cm}^{2}

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 {cm}^{2}

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 {cm}^{2}

. 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 10^{5} V / cm

, then calculate the maximum voltage up to which the capacitor can be charged. How much charge will be stored on the capacitor?

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 11

When a $20 V$ Battery is connected to an air-capacitor, a charge of $30 μC$ Is obtained on the capacitor. When oil is filled between the plates of the capacitor, then a charge of $75 μC$ Is obtained. Calculate the dielectric constant of the oil.

EASY

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 4 - Capacitors and Dielectrics>QUESTIONS>Q 11

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?

Important Questions on Capacitors and Dielectrics

Learn and Prepare for any exam you want !

What distance $d$ Between the two parallel plates, each of area $A = 0.0314 m^{2}$ , of an air capacitor be kept so that its capacitance is same as of a conducting sphere of radius $a = 0.5 m$ ?