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Two capacitors each having capacitance C and breakdown voltage
Concepts of Physics by H. C. Verma
Concepts of Physics

Class 12

HC Verma Part II

Author:
H. C. Verma
Subject:
Physics
1

Chapter 1: Heat and Temperature

64 questions

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2

Chapter 2: Kinetic Theory of Gases

100 questions

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3

Chapter 3: Calorimetry

41 questions

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4

Chapter 4: Laws of Thermodynamics

51 questions

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5

Chapter 5: Specific Heat Capacities of Gases

65 questions

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6

Chapter 6: Heat Transfer

82 questions

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7

Chapter 7: Electric Field and Potential

106 questions

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8

Chapter 8: Gauss's Law

46 questions

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9

Chapter 9: Capacitors

94 questions

Q1
A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the capacitor is:
Q2
Two capacitors each having capacitance C and breakdown voltage V are joined in series. The capacitance and the breakdown voltage of the combination will be:
Q3
If the capacitors in the previous question are joined in parallel, the capacitance and the breakdown voltage of the combination will be:
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10

Chapter 10: Electric Current in Conductors

126 questions

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11

Chapter 11: Thermal and Chemical Effects of Electric Current

46 questions

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12

Chapter 12: Magnetic field

91 questions

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13

Chapter 13: Magnetic field due to a Current

92 questions

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14

Chapter 14: Permanent Magnets

54 questions

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15

Chapter 15: Magnetic Properties of Matter

31 questions

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16

Chapter 16: Electromagnetic Induction

133 questions

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17

Chapter 17: Alternating Current

51 questions

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18

Chapter 18: Electromagnetic Waves

30 questions

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19

Chapter 19: Electric Current through Gases

49 questions

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20

Chapter 20: Photoelectric Effect and Wave Particle Duality

69 questions

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21

Chapter 21: Bohr'a Model and Physics of the Atom

75 questions

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22

Chapter 22: X-rays

59 questions

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23

Chapter 23: Semiconductors and Semiconductor devices

71 questions

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24

Chapter 24: The Nucleus

94 questions

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Question
Easy
Timing Icon

Solving time: 2 mins

Two capacitors each having capacitance C and breakdown voltage V are joined in series. The capacitance and the breakdown voltage of the combination will be:

A
2C and 2V

B
C/2 and V/2

C
2C and V/2

D
C/2 and 2V

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Views: 6,304 students

Updated on: Jun 25, 2023

Book

Book:

Concepts of Physics (HC Verma Part II)

Text SolutionText solutionverified iconVerified

Since the voltage gets added up when the capacitors are connected in series, the voltage of the combination is . Also, the capacitance of a series combination is given by

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Practice questions from Concepts of Physics (HC Verma Part II)

Question 1
Medium
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A charge of 20 µC is placed on the positive plate of an isolated parallel-plate capacitor of capacitance 10 µF. Calculate the potential difference developed between the plates.
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Concepts of Physics (HC Verma Part II)

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Question 2
Easy
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Views: 5,589

The capacitance of a capacitor does not depend on:
  1. The shape of he plates
  2. The size of the plates
  3. The charges on the plates
  4. The separation between the plates
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Concepts of Physics (HC Verma Part II)

View 3 solutions

Question 3
Easy
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The dielectric constant decreases if the temperature is increased. Explain this in terms of polarization of the material.
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Concepts of Physics (HC Verma Part II)

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Question 4
Hard
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Find the capacitances of the capacitors shown in figure . The plate area is Aand the separation between the plates is d. Different dielectric slabs in a particular part of the figure are of the same thickness and the entire gap between the plates is filled with the dielectric slabs.
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Concepts of Physics (HC Verma Part II)

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Calculate potential energy of a point charge placed along the axis due to a charge uniformly distributed along a ring of radius . Sketch , as a function of axial distance from the centre of the ring. Looking at graph, can you see what would happen if is displaced slightly from the centre of the ring (along the axis)?
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Topic:

Electrostatic Potential and Capacitance

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Book:

Physics Exemplar (NCERT Exemplar)

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Question 2
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The separation between the plates of a charged parallel- plate capacitor is increased. The force between the plates
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Book

Book:

Electricity and Magnetism (DC Pandey)

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Question 3
Hard
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The capacitance of a parallel plate capacitor is and its plates are separated by of air (a) What will be the energy when it is charged to . (b) What will be the potential difference with the same charge if plate separation is doubled?
(c) How much energy is needed to double the distance between its plates?
[(a) ; (b) ; (c)
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Physics Galaxy Electrostatics and Current Electricity Vol 3 A (Ashish Arora)

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Question 4
Medium
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Find the potential difference between the points a and b shown in each part of the figure.
Topic

Topic:

Electrostatic Potential and Capacitance

Book

Book:

Concepts of Physics (HC Verma Part II)

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Question 3
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80 A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is and the refractive index of the lens material is 1.5 , then the focal length of the lens (in ) is [2020, 8 Jan Shift-1] 81 A convex lens (of focal length ) and a concave mirror, having their principal axes along the same lines, are kept apart from each other. The concave mirror is to the right of the convex lens. When an object is kept at a distance of to the left of the convex lens, its image remains at the same position even if the concave mirror is removed. The maximum distance of the object for which this concave mirror, by itself would produce a virtual image would be [2019, 8 April Shift-II]
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Question Text
Two capacitors each having capacitance C and breakdown voltage V are joined in series. The capacitance and the breakdown voltage of the combination will be:
Updated OnJun 25, 2023
TopicElectrostatic Potential and Capacitance
SubjectPhysics
ClassClass 12
Answer TypeText solution:1 Video solution: 11
Upvotes1269
Avg. Video Duration6 min