Loading…

GyanMul PrepLearn • Prepare • Grow • Together

Important: AI-assisted learning content

Some solutions, explanations, questions and other learning content in GyanMul Prep may be generated or assisted by AI. While we work to review and improve the content, AI-generated content can sometimes contain mistakes, inaccuracies or errors.

If you find anything incorrect, please report it to us. Your reports help us improve GyanMul and keep the learning experience accurate and useful.

GyanMul PrepLearn • Prepare • Grow • Together

GyanMul Prep is part of GyanMul — same account, same platform.

Product

Explore Exams
Practice Sets
Mock Tests
Past Papers
Study Plan

Learning

My Preparation
Gurubaa AI
Resources Soon
Performance Soon
Achievements Soon

Community

Discussion Soon
Help & Support Soon
Learner Stories Soon

Free questions

SEE past papers
SEE model questions
Class 10 Science questions
NEB past papers
NEB Class 12 questions
एसईई पुराना प्रश्नपत्र

Company

About GyanMul
Contact
Support

Legal

Privacy Policy
Terms of Service
Cookie Policy
Data Processing Agreement
Children’s Privacy
Delete your account

© 2026 Nepfex Innovations Pvt. Ltd. All rights reserved.GyanMul Prep is a product of Nepfex Innovations Pvt. Ltd. · For a Stronger, Smarter Nepal.

Home Explore Exams Progress My PreparationPractice ClashLive Mock Tests Past Papers Study PlanLearning Notes & Resources Soon Performance Soon Achievements SoonCommunity Discussion Soon Community Soon

Home Learn Plan Clash

Home›Explore Exams›NEB +2› Science› Grade 12›Subjects›Physics (Science, Grade 12)

GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapters Questions Practice Quizzes Past Papers Institution Papers Mock Tests Solved Questions Progress Gurubaa

Chapters›Electrons

20

Chapter 20 of 25 · Physics (Science, Grade 12)

Electrons

4 topics
Board exam — Modern Physics, 19 marks across 6 chapters
23 solved questions

Measuring the electron itself: Millikan's drop held still to find its charge, and Thomson's crossed fields to find its specific charge.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Millikan's oil drop experiment and the quantization of charge
2Motion of an electron beam in an electric field
3Motion of an electron beam in a magnetic field
4Thomson's experiment for the specific charge (e/m) of an electron

Previous chapterAlternating Currents Next chapterPhotons