Electro Magnetic field is generally considered to be of moderate difficulty. Over the last 5 years nearly, 5 to 6 questions have been asked from topics such as Biot-Savrat Law, Force on Moving Charge in magnetic Field. Magnetic field is a subtopic in Magnetism and matter in class 12 Physics. This topic carries approximately 3-4% weightage and candidates can expect 4-5 questions from this chapter in the exam.
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- Download JEE Advanced Syllabus 2025
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Listed below is the list of Electric Magnetic Field questions with detailed solutions asked in JEE Advanced exam 2025:
Question 1:
A positive, singly ionized atom of mass number AM is accelerated from rest by the voltage 192V. Thereafter, it enters a rectangular region of width ???? with magnetic field and B0ˉ=0.1????^ Tesla, as shown in the figure. The ion finally hits a detector at the distance ???? below its starting trajectory. [Given: Mass of neutron/proton = (5/3)×10−27 kg, charge of the electron =1.6×10−19C.
Which of the following option(s) is(are) correct?
Question 2:
A thin stiff insulated metal wire is bent into a circular loop with its two ends extending tangentially from the same point of the loop. The wire loop has mass m and radius r and is in a uniform vertical magnetic field B0. When a current I is passed through the loop, the loop turns about the line PQ by an angle θ. The angle θ is given by:
Question 3:
Question 4:
A thin conducting rod MN of mass 20 gm, length 25 cm, and resistance 10 Ω are held on frictionless, long, perfectly conducting vertical rails as shown in the figure. There is a uniform magnetic field ????0 = 4 T directed perpendicular to the plane of the rod-rail arrangement. The rod is released from rest at time ???? = 0 and it moves down along the rails. Assume air drag is negligible. Match each quantity in List-I with an appropriate value from List-II, and choose the correct option.
[Given: The acceleration due to gravity ???? = 10 m s−2 and ????−1 = 0.4]
| List I | List II | ||
|---|---|---|---|
| (P) | At ???? = 0.2 s, the magnitude of the induced emf in Volt | (1) | 0.07 |
| (Q) | At ???? = 0.2 s, the magnitude of the magnetic force in Newton | (2) | 0.14 |
| (R) | At ???? = 0.2 s, the power dissipated as heat in Watt | (3) | 1.20 |
| (S) | The magnitude of terminal velocity of the rod in m s−1 | (4) | 0.12 |
| (5) | 2.00 | ||
Question 5:
An electric dipole is formed by two charges +q and -q located in the x-y plane at (0,2) mm and (0,-2) mm as shown in the figure. The electric potential at point P(100, 100) mm due to dipole is V0. Now the charges +q and -q are moved to (-1,2)mm and (1,-2)mm respectively. What is the value of the electric potential at point P due to this new dipole?
Question 6:
A rectangular conducting loop of length 4 cm and width 2 cm is in the X-Y plane. It is being moved away from a thin and long conducting wire along the direction (32x^+12y^) with constant speed v. The wire is carrying a steady current I = 10 A in the +ve X- direction. A current of 10 μA flows through the loop when it is at a distance d = 4 cm from the wire. If the resistance of the loop is 0.1 Ω. Then the value of v is ........m/s
Question 7:
Question 8:
A monochromatic light wave is incident normally on a glass slab of thickness d, as shown in the figure. The refractive index of the slab increases linearly from n1 to n2 over the height h. Which of the following statement(s) is(are) true about the light wave emerging out of the slab?
Question 9:
Question 10:
A physical quantity S is defined as S=(E×B)/μ0, where E is electric field, B is magnetic field and μ0 is the permeability of free space. The dimensions of S are the same as the dimensions of which of the following quantities?
Question 11:
Two concentric circular loops, one of radius R and the other of radius 2R, lie in the xy-plane with the origin as their common centre, as shown in the figure . The smaller loop carries current I1 in the anti-clockwise direction and the larger loop carries current I2 in the clock wise direction, with I2>2I1,B(x,y)I2>2I1, B (x,y) denotes the magnetic field at a point (x,y) in the xy-plane. Which of the following statement (s) is ( are ) correct?
Question 12:
JEE Advanced 2025 Exam Pattern
The JEE Advanced 2025 exam consists of two papers: Paper 1 and Paper 2. Both papers are compulsory and must be attempted by the candidates. The exam will be conducted online (computer-based).
Subject-wise Syllabus: JEE Advanced 2025
The JEE Advanced 2025 Subject-wise Syllabus covers crucial topics across Physics, Chemistry, and Mathematics, with each subject focusing on advanced concepts.
- Mathematics emphasizes Calculus and Algebra (accounting for up to 40% of the exam)
- Physics delves into Mechanics and Electrodynamics, while Chemistry includes topics like Physical Chemistry and Organic Chemistry.
- As observed from past data that Mathematics often carries the highest weightage, making it a critical area for focused preparation.
JEE Advanced Chapter-wise Weightage
The JEE Advanced chapter-wise weightage helps you understand which topics carry more importance in the exam. By focusing on high-weightage chapters, you can optimize your preparation. For example, in Mathematics, topics like Calculus and Algebra usually carry about 50-60% of the questions, while in Physics, Mechanics and Electromagnetism contribute significantly.
JEE Advanced Physics - Weightage and Important Topics
| Topic | Approximate Weightage | Important Topics |
|---|---|---|
| Mechanics | 20-25% | Kinematics, Laws of Motion, Work, Energy & Power, Rotational Motion |
| Thermodynamics | 8-12% | First and Second Laws of Thermodynamics, Entropy, Heat Transfer |
| Electrostatics and Magnetism | 15-18% | Coulomb’s Law, Electric Fields, Gauss’s Law, Ampere’s Law, Magnetic Field due to Currents |
| Modern Physics | 10-15% | Photoelectric Effect, Atomic Models, Nuclear Physics, Semiconductors |
| Optics | 8-10% | Reflection & Refraction, Wave Optics (Interference, Diffraction) |
| Properties of Matter | 5-8% | Elasticity, Surface Tension, Viscosity |
| Gravitation | 5-7% | Gravitational Force, Potential Energy, Kepler’s Laws |
- Mechanics (particularly Kinematics and Laws of Motion) have a higher weightage, often constituting a major chunk of the Physics paper.
- Modern Physics, with topics like the Photoelectric Effect and Nuclear Physics, remains significant with high-scoring potential.
- Physical Chemistry and Organic Chemistry both have a large weightage. Topics like Chemical Kinetics and Reaction Mechanisms in Organic Chemistry are crucial and frequently asked.
- Inorganic Chemistry remains a reliable scoring area with an emphasis on Periodic Table and Coordination Compounds.
JEE Advanced 2025: Subject-wise Weightage
| Subject | Weightage | Important Topics |
|---|---|---|
| Physics | 25-30% | Mechanics, Electrostatics, Magnetism, Modern Physics, Thermodynamics |
| Chemistry | 25-30% | Physical Chemistry, Organic Chemistry, Inorganic Chemistry |
| Mathematics | 35-40% | Algebra, Calculus, Coordinate Geometry, Trigonometry, Probability |
- Mathematics holds the highest weightage, so mastering Calculus and Algebra is critical.
- Physics and Chemistry both have significant portions dedicated to Mechanics and Physical Chemistry, respectively.
- Regular practice of important topics like Modern Physics, Organic Chemistry, and Coordinate Geometry can help candidates maximize their scores in JEE Advanced 2025.
To find the Minimum Marks Required to Qualify JEE Advanced 2025, it's also important to understand the category-wise cutoff criteria set by the exam authorities.
Previous Years’ Question Paper
JEE Advanced 2024 Question Paper PDF
| Paper | Question Paper PDF | Answer Key PDF |
|---|---|---|
| Question Paper 1 PDF | Download PDF | Download PDF |
| Question Paper 2 PDF | Download PDF | Download PDF |
JEE Advanced 2023 Question Paper PDF
| Paper | Question Paper PDF | Answer Key PDF |
|---|---|---|
| Question Paper 1 PDF | Download PDF | Download PDF |
| Question Paper 2 PDF | Download PDF | Download PDF |
JEE Advanced 2022 Question Paper PDF
| Paper | Question Paper PDF | Answer Key PDF |
|---|---|---|
| Question Paper 1 PDF | Download PDF | Download PDF |
| Question Paper 2 PDF | Download PDF | Download PDF |
JEE Advanced 2021 Question Paper PDF
| Question Paper | PDF Download | ||
|---|---|---|---|
| Question Paper 1 PDF | Physics | Chemistry | Maths |
| Question Paper 2 PDF | Physics | Chemistry | Maths |
JEE Advanced 2020 Question Paper
| Question Paper | Question Paper PDF | Answer Key PDF |
|---|---|---|
| Question Paper 1 PDF | Download PDF | Download PDF |
| Question Paper 2 PDF | Download PDF | Download PDF |
Frequently Asked Questions:
Are Electromagnetic fields important for JEE Advanced 2025?
Yes, Electromagnetic fields do carry some importance in JEE Advanced with 3-4 questions annually. It contains formula-based and concept-type direct questions, mostly with reference to the practical application aspect of magnetic fields.
A clear knowledge of this chapter can help in achieving more marks with less effort.
Is JEE Advanced 2025 Tough?
The JEE Advanced 2025 is expected to be one of the most toughest exams for aspirants. To get admission in institutes like the IITs (Indian Institutes of Technology), IISc (Indian Institute of Science), and other top engineering colleges, JEE Advanced is known for its high level of difficulty.
Syllabus Complexity:
The JEE Advanced 2025 syllabus covers a wide range of topics in Physics, Chemistry, and Mathematics. While some topics are foundational, others are highly difficult and require a deep understanding and application. The difficulty increases due to the complexity of questions.
What is 110 marks in JEE Advanced exam?
The top-ranked candidates across all categories are expected to score higher compared to the last-ranked candidates. For example, the first-ranked CRL candidate is expected to score around 360 marks, while the last-ranked candidate in CRL might only score around 110 marks, indicating a large gap in preparation of the highest and lowest qualifiers.
Marks vs Rank Analysis (Previous Year Trends):
While the exact ranks depend on the exam's difficulty level, here's a general idea based on past year trends:
| Marks in JEE Advanced | Expected Rank Range (General) | Category Rank (SC/ST/OBC) |
| 350 - 360+ | 1-100 | 1-10 |
| 320 - 350 | 100 - 500 | 10-50 |
| 290 - 320 | 500 - 1500 | 50-200 |
| 260 - 290 | 1500 - 3000 | 200-500 |
| 230 - 260 | 3000 - 6000 | 500-1500 |
| 200 - 230 | 6000 - 10000 | 1500-3000 |
| 150 - 200 | 10000 - 15000 | 3000-5000 |
| Below 150 | Above 15000 | 5000+ |
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