Electric Charges and Fields: Class 12 Physics (UP Board) important questions and practice
Electric Charges and Fields is chapter 1 of 14 in UP Board Class 12 Physics. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Electric charge: properties, quantisation and conservation
- Coulomb's law and superposition principle
- Electric field and field lines; field due to a dipole (axial and equatorial)
- Torque on a dipole in a uniform field
- Electric flux and Gauss's law
- Applications of Gauss's law: infinite wire, infinite plane sheet, thin spherical shell
What examiners usually ask
- Derive the expression for the electric field at a point on the axial line of an electric dipole
- Using Gauss's law derive the electric field due to a uniformly charged infinite plane sheet
- State Gauss's law; two charges of 5 microcoulomb and -5 microcoulomb are placed 10 cm apart; find the field at the midpoint
Exam tip
The three Gauss's law applications and the dipole field derivations are the core 3-5 mark questions; draw the Gaussian surface, state symmetry, and remember the shell result (E = 0 inside, kQ/r^2 outside) is also asked as a graph.
Electric Charges and Fields on other boards and exams
Frequently asked questions
What are the important questions from Electric Charges and Fields for UP Board Class 12?
The question types listed above repeat most often in UP Board Class 12 Physics papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Electric Charges and Fields in the UP Board Class 12 Physics syllabus?
Yes. Electric Charges and Fields is part of the current UP Board Class 12 Physics syllabus, as listed on this site from the prescribed textbook.
Can I practise Electric Charges and Fields MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.