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NCERT Class 12 Physics Chapter 1 Electric Charges and Fields MCQs & PYQ

Electric Charges and Fields: Class 12 Physics MCQs for CBSE & CUET, NCERT Solutions & 10-Year PYQs
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In Class 12 Physics Chapter 1, titled "Electric Charges and Fields," students are introduced to the core concepts of electrostatics. This chapter covers the nature of electric charges, Coulomb’s law, electric fields, and their applications, laying a strong foundation for understanding the behavior of charged particles.
In this article, students can access downloadable PDF featuring MCQs tailored for CUET and CBSE/State Board exams. We have also provided a PDF compilation of 10 years Previous Year Questions (subjective) from NCERT/CBSE, without solutions. This will allow students to thoroughly practice and master this chapter.
NCERT Class 12 Physics Chapters
Class 12 Physics Chapter 1 MCQs
Check the MCQs for class  12th Physics  Chapter on Electric Charges and Fields. Each MCQ has four options, out of which only one is correct. Students have to pick the correct option and check the answer provided here.
1.
A polythene piece rubbed with wool is found to have a negative charge of 8 × 10‒10C. What is the number of electrons transferred?
 
(a) 2 × 1010; polythene to wool                       (b) 5 × 109; polythene to wool
(c) 5 × 109; wool to polythene                         (d) 2 × 1010; wool to polythene
 
2.
A positively charged glass rod attracts an object. The object must be :
 
(a) negatively charged                                                                        (b) Neutral
(c) either negatively charged or neutral          (d) a magnet
 
3.
The number of electrons in one coulomb of electric charge is :
 
(a) 6.25×10-18                  (b) 6.25×1018                   (c) 1.6×10-19                      (d) 1.6×10+19
 
 
4.
Two point charges +4 μC and - 2 μC are placed at a certain distance in air. They experience an attractive force F. If they are brought in contact with each other and then separated to the same  distance, the new repulsive force between them will be :
 
 (a) 8F                                     (b) 4F                          (c) F/8                          (d) F/4
 
Class 12 Physics Chapter 1 Subjective Questions Without Solutions
Check the subjective type questions for class  12th Physics  Chapter on Electric Charges and Fields. Each question has four options, out of which only one is correct. Students have to pick the correct option.
5. Two identical conducting balls A and B have charges - Q and +3Q respectively. They are brought in contact with each other and then separated by a distance d apart. Find the nature of the Coulomb force between them.
(CBSE 2019, 1M, with Optional Question)
6. Derive the expression for the torque acting on an electric dipole, when it is held in a uniform electric field. Identify the orientation of the dipole in the electric field, in which it attains a stable equilibrium.
(CBSE 2020, 2M, with Optional Question)
7. Two charged conducting spheres of radii a and b are connected to each other by a wire. Find the ratio of the electric fields at their surfaces.
(CBSE 2023, 2M, with Optional Question)
8. Two long straight parallel conductors carrying currents, exert a force on each other. Why ?
Derive an expression for the force per unit length between two long straight parallel conductors carrying currents in opposite directions. Explain the nature of the force between these conductors.
(CBSE 2024, 3M)
 
NCERT Science Subjects
 
Unit Name
Sub Areas of Chapter 1 Electric Charges and Fields
Electric Charges And Fields
1.1 Introduction
1.2 Electric Charge
1.3 Conductors and Insulators
1.4 Basic Properties of Electric Charge
1.5 Coulomb’s Law
1.6 Forces between Multiple Charges
1.7 Electric Field
1.8 Electric Field Lines
1.9 Electric Flux
1.10 Electric Dipole (The field of an electric dipole)
1.11 Dipole in a Uniform External Field
1.12 Continuous Charge Distribution
1.13 Gauss’s Law
1.14 Applications of Gauss’s Law
Review of NCERT Class 12 Physics Chapter 1
NCERT Class 12 Physics Chapter 1 introduces students to fundamental electrostatics, covering electric charges, fields, and forces, including Coulomb’s law. This chapter establishes the basics needed for understanding interactions between charged particles and provides a foundation for advanced concepts in electric fields and potential.
In NCERT Class 12 Physics Chapter 1, students also study electric dipoles, flux, and Gauss's law, learning to calculate field intensity and visualize field lines. Mastering these concepts in NCERT Class 12 Physics Chapter 1 is essential for problem-solving in physics and applications in electrical engineering.
CUET
 
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