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Chapters
▶ 2: Electrostatic Potential and Capacitance
3: Current Electricity
4: Moving Charges and Magnetism
5: Magnetism and Matter
6: Electromagnetic Induction
7: Alternating Current
8: Electromagnetic Waves
9: Ray Optics and Optical Instruments
10: Wave Optics
11: Dual Nature of Radiation and Matter
12: Atoms
Chapter 13: Nuclei
Chapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
![NCERT solutions for Physics [English] Class 12 chapter 2 - Electrostatic Potential and Capacitance - Shaalaa.com](/images/physics-english-class-12_6:ecf5a31cda3a46679a04fc327e398323.jpg "NCERT solutions for Physics [English] Class 12 chapter 2 - Electrostatic Potential and Capacitance")
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Solutions for Chapter 2: Electrostatic Potential and Capacitance
Below listed, you can find solutions for Chapter 2 of CBSE, Karnataka Board PUC NCERT for Physics [English] Class 12.
NCERT solutions for Physics [English] Class 12 2 Electrostatic Potential and Capacitance EXERCISES [Pages 79 - 80]
Two charges 5 × 10−8 C and −3 × 10−8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.
A regular hexagon of side 10 cm has a charge 5 µC at each of its vertices. Calculate the potential at the centre of the hexagon.
Two charges 2 μC and −2 µC are placed at points A and B 6 cm apart.
- Identify an equipotential surface of the system.
- What is the direction of the electric field at every point on this surface?
A spherical conductor of radius 12 cm has a charge of 1.6 × 10−7 C distributed uniformly on its surface. What is the electric field
- inside the sphere
- just outside the sphere
- at a point 18 cm from the centre of the sphere?
A parallel plate capacitor with air between the plates has a capacitance of 8 pF (1pF = 10−12 F). What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6?
Three capacitors each of capacitance 9 pF are connected in series.
- What is the total capacitance of the combination?
- What is the potential difference across each capacitor if the combination is connected to a 120 V supply?
Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel. What is the total capacitance of the combination?
Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel. Determine the charge on each capacitor if the combination is connected to a 100 V supply.
In a parallel plate capacitor with air between the plates, each plate has an area of 6 × 10−3 m2 and the distance between the plates is 3 mm. Calculate the capacitance of the capacitor. If this capacitor is connected to a 100 V supply, what is the charge on each plate of the capacitor?
Explain what would happen if the capacitor given in previous question a 3 mm thick mica sheet (of dielectric constant = 6) were inserted between the plates,
- While the voltage supply remained connected.
- After the supply was disconnected.
A 12 pF capacitor is connected to a 50 V battery. How much electrostatic energy is stored in the capacitor?
A 600 pF capacitor is charged by a 200 V supply. It is then disconnected from the supply and is connected to another uncharged 600 pF capacitor. How much electrostatic energy is lost in the process?
Solutions for 2: Electrostatic Potential and Capacitance
NCERT solutions for Physics [English] Class 12 chapter 2 - Electrostatic Potential and Capacitance
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Physics [English] Class 12 CBSE, Karnataka Board PUC solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Physics [English] Class 12 CBSE, Karnataka Board PUC 2 (Electrostatic Potential and Capacitance) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Physics [English] Class 12 chapter 2 Electrostatic Potential and Capacitance are Overview: Electric Potential, Overview: Capacitors and Dielectrics, Electric Potential, Potential Due to a Point Charge, Potential Due to a System of Charges, Equipotential Surfaces, Dielectrics, Capacitors and Capacitance, Combination of Capacitors, Free Charges and Bound Charges Inside a Conductor, Conductors and Insulators Related to Electric Field, Electrical Potential Energy of a System of Two Point Charges and of Electric Dipole in an Electrostatic Field, Potential and Potential Difference, Potential Due to an Electric Dipole, Relation Between Electric Field and Electrostatic Potential, Potential Energy of a System of Charges, Potential Energy of a Single Charge, Potential Energy of a System of Two Charges in an External Field, Potential Energy of a Dipole in an External Field, Electrostatics of Conductors, The Parallel Plate Capacitor, Effect of Dielectric on Capacity, Energy Stored in a Charged Capacitor, Van De Graaff Generator, Capacitance of a Parallel Plate Capacitor with and Without Dielectric Medium Between the Plates, Overview: Electric Potential, Overview: Capacitors and Dielectrics, Electric Potential, Potential Due to a Point Charge, Potential Due to a System of Charges, Equipotential Surfaces, Dielectrics, Capacitors and Capacitance, Combination of Capacitors, Free Charges and Bound Charges Inside a Conductor, Conductors and Insulators Related to Electric Field, Electrical Potential Energy of a System of Two Point Charges and of Electric Dipole in an Electrostatic Field, Potential and Potential Difference, Potential Due to an Electric Dipole, Relation Between Electric Field and Electrostatic Potential, Potential Energy of a System of Charges, Potential Energy of a Single Charge, Potential Energy of a System of Two Charges in an External Field, Potential Energy of a Dipole in an External Field, Electrostatics of Conductors, The Parallel Plate Capacitor, Effect of Dielectric on Capacity, Energy Stored in a Charged Capacitor, Van De Graaff Generator, Capacitance of a Parallel Plate Capacitor with and Without Dielectric Medium Between the Plates.
Using NCERT Physics [English] Class 12 solutions Electrostatic Potential and Capacitance exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE, Karnataka Board PUC Physics [English] Class 12 students prefer NCERT Textbook Solutions to score more in exams.
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