NCERT Class 12 Physics Chapter 4 Moving Charges and Magnetism Test Mock Test
This free online test covers Chapter 4, Moving Charges and Magnetism, from the NCERT Class 12 Physics Part I textbook. The 30 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.
Duration
30 mins
Questions
30 MCQs
Total Marks
30 pts
Negative
0 per wrong
Topics Covered in This Paper
Sample Questions
Q1.During his 1820 lecture demonstration, Oersted found that a compass needle placed near a straight current-carrying wire aligns itself:
- ATangential to an imaginary circle centred on the wire, in a plane perpendicular to the wire
- BAlong the wire, parallel to the direction of the current
- CRadially, pointing straight towards the wire
- DPerpendicular to the plane containing the wire and the needle's original direction
Q2.The Lorentz force on a charge q moving with velocity v in fields E and B has a magnetic part which is zero when:
- AThe velocity is perpendicular to the magnetic field
- BThe charge is negative rather than positive
- CThe electric field is zero at that point
- DThe velocity is parallel or antiparallel to the magnetic field, or the charge is at rest
Q3.The SI unit of magnetic field, the tesla, is defined so that the field is 1 T when the force on:
- AA wire of length 1 m carrying no current is one newton
- BA charge of 1 C moving perpendicular to the field at 1 m/s is one newton
- CA charge of 1 C at rest in the field is one newton
- DA charge of 1 C moving parallel to the field at 1 m/s is one newton
Before you begin
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Each correct answer carries +1 marks.
Each wrong answer carries -0 marks.
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Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.
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FAQ
Frequently asked questions
Frequently Asked Questions
- How many questions are in the NCERT Class 12 Physics Chapter 4 Moving Charges and Magnetism Test mock test?
- This paper has 30 multiple-choice questions carrying 30 marks in total, to be attempted in 30 minutes.
- Is the NCERT Class 12 Physics Chapter 4 Moving Charges and Magnetism Test mock test free to attempt?
- Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
- Does this paper have negative marking?
- No, there is no negative marking on this paper, so an attempted guess costs you nothing.
- Are solutions and explanations available?
- Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.