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BEE301 Electromagnetic Field Theory Important Questions 2026 (AKTU)
Built from all 4 AKTU Electromagnetic Field Theory papers (2021-22–2024-25): 97 questions grouped into 70 distinct questions, 19 of which were asked in more than one paper.
How much of the paper repeats?
When we checked each newer BEE301 paper against the papers before it, on average 54% of its marks were questions already asked in an earlier paper.
- 2023-24 paper: 48% of marks were repeats (6 of 10 repeated questions were in our top list)
- 2024-25 paper: 61% of marks were repeats (8 of 14 repeated questions were in our top list)
Our Tier 1 + Tier 2 topics covered 61% of the next paper's marks — picking the same number of topics at random would have covered about 50%. So topic weightage is a useful guide, not a guarantee.
Across 10 subjects and 23 papers we tested, 43% of marks repeated earlier questions on average.
Unit 1: Vector calculus — 21% of past marks
Most-asked questions from this unit
- Given vector field G = 8 sinφ a_r is in spherical coordinate, modify it into the cylindrical and rectangular coordinate system. Asked 3×
- Examine the gradient of any scaler V and divergence and curl of any vector A in different co-ordinate systems. Asked 2×
- Compute the gradient of the scalar field f(x, y, z) = x² + y + z at point (2, 0, 1). Asked 2×
- Derive the Gauss divergence theorem. Asked 1×10 marks2024-25 Q3(a)
Unit 2: Electrostatic fields — 22% of past marks
Most-asked questions from this unit
- Explain the concept of energy stored and energy density in static electric field. Asked 2×
- A potential field in free space is expressed as V = …/r² volt (see original paper). Determine the electric flux density and hence the volume charge density at the point (r = 3 m, θ = 60°, φ = 25°) in spherical coordinates. Asked 2×
- Describe how E = −∇V, where E and V denote electric field and electric potential respectively. Asked 2×
- Determine the electric field in space due to charged finite length wire having uniform charge density. Asked 1×10 marks2024-25 Q2(b)
Unit 3: Magneto statics — 21% of past marks
Most-asked questions from this unit
- Determine the magnetic flux density B at a distance of d meter from an infinite straight wire carrying current I. Also, the flux density when the wire is semi-infinite. Asked 4×
- State that ∮ B·ds is zero in a static magnetic field. Asked 3×
- Derive the expression of magnetic field for an infinitely long coaxial transmission. Asked 2×
- Explain the Ampere's circuital law and derive their applications. Asked 2×
Unit 4: Magnetic forces — 15% of past marks
Most-asked questions from this unit
- Verify that magnetostatic energy is given by W = … (see original paper) Asked 3×
- Establish the equations for boundary condition for both B and H. Also discuss modified ampere's circuital law. Asked 3×
- Explain the concept of magnetization and susceptibility. Asked 1×10 marks2024-25 Q6(a)
- Derive an expression for the inductance of solenoid and toroid. Asked 1×10 marks2024-25 Q6(b)
Unit 5: Waves and Applications — 21% of past marks
Most-asked questions from this unit
- Derive an expression of characteristic impedance and propagation constant for a general and lossless transmission line. Asked 3×
- Explain the physical significance of the Poynting vector. Asked 3×
- Determine the solution of the plain wave equation in a conducting medium (lossy dielectric). Asked 2×
- Derive and state the Poynting theorem for EM wave. Asked 2×
Topic weightage
Tier 1 = topics that carried the top half of past marks, Tier 2 = up to 80%. Based on how often each topic was asked — it shows where marks have gone, not a promise of what comes next.
T1 · Biot-Savart's law (Unit 3)4/4 papers · 7%
T1 · Ampere's circuit law and applications (Unit 3)4/4 papers · 6.5%
T1 · Transmission line equations and parameters (Unit 5)4/4 papers · 6.3%
T1 · Electric dipole and potential (Unit 2)3/4 papers · 5.3%
T1 · Coordinate system transformations (Unit 1)4/4 papers · 5%
T1 · Electric flux density and Gauss's law (Unit 2)2/4 papers · 4.5%
T1 · Magnetic energy (Unit 4)3/4 papers · 4.3%
T1 · Power and Poynting vector (Unit 5)3/4 papers · 4.3%
T1 · Magnetic boundary conditions (Unit 4)3/4 papers · 4%
T1 · Divergence and divergence theorem (Unit 1)4/4 papers · 4%
T2 · Del operator and gradient (Unit 1)3/4 papers · 3.7%
T2 · Maxwell's equations for static fields (Unit 3)2/4 papers · 3.2%
T2 · Curl and Stokes's theorem (Unit 1)3/4 papers · 3%
T2 · Waves in lossy dielectrics and conductors (Unit 5)2/4 papers · 3%
T2 · Coulomb's law and field intensity (Unit 2)1/4 papers · 3%
T2 · Magnetic flux density (Unit 3)4/4 papers · 2.9%
T2 · Electrostatic energy density (Unit 2)2/4 papers · 2.8%
T2 · Laplacian of a scalar (Unit 1)1/4 papers · 2.8%
T2 · Vector algebra basics (Unit 1)2/4 papers · 2.5%
T2 · Inductors and inductances (Unit 4)3/4 papers · 2.5%
T3 · Faraday's law, transformer and motional EMF (Unit 5)3/4 papers · 2.5%
T3 · Fields of charge distributions (Unit 2)1/4 papers · 2%
T3 · Convection, conduction currents and conductors (Unit 2)2/4 papers · 1.8%
T3 · Magnetic torque, moment and dipole (Unit 4)2/4 papers · 1.8%
T3 · Magnetization in materials (Unit 4)2/4 papers · 1.8%
T3 · Electrostatic boundary conditions (Unit 2)1/4 papers · 1.5%
T3 · Displacement current (Unit 5)1/4 papers · 1.5%
T3 · Poisson's, Laplace's equations and images (Unit 2)1/4 papers · 1.3%
T3 · Magnetic scalar and vector potential (Unit 3)1/4 papers · 1.3%
T3 · Plane waves in lossless dielectrics and free space (Unit 5)1/4 papers · 1.3%
T3 · Smith chart (Unit 5)1/4 papers · 1.3%
T3 · Forces due to magnetic fields (Unit 4)2/4 papers · 1%
T3 · Maxwell's equations in final form (Unit 5)1/4 papers · 0.5%
T3 · Reflection at normal incidence (Unit 5)1/4 papers · 0.5%
Paper pattern (2024-25)
- Section A: 8 questions × 2 marks, attempt all
- Section B: 5 questions × 10 marks, attempt any 3
- Section C: 10 questions × 10 marks, attempt any 1
In the syllabus, never asked yet
Low priority, but read them once — a new paper can always start here.
- Line, surface and volume integrals (Unit 1)
- Polarization and dielectric constants (Unit 2)
- Continuity equation and relaxation time (Unit 2)
Study order
- Biot-Savart's law (Unit 3, Tier 1)
- Ampere's circuit law and applications (Unit 3, Tier 1)
- Transmission line equations and parameters (Unit 5, Tier 1)
- Electric dipole and potential (Unit 2, Tier 1)
- Coordinate system transformations (Unit 1, Tier 1)
- Electric flux density and Gauss's law (Unit 2, Tier 1)
- Magnetic energy (Unit 4, Tier 1)
- Power and Poynting vector (Unit 5, Tier 1)
- Magnetic boundary conditions (Unit 4, Tier 1)
- Divergence and divergence theorem (Unit 1, Tier 1)
- Del operator and gradient (Unit 1, Tier 2)
- Maxwell's equations for static fields (Unit 3, Tier 2)
- Curl and Stokes's theorem (Unit 1, Tier 2)
- Waves in lossy dielectrics and conductors (Unit 5, Tier 2)
- Coulomb's law and field intensity (Unit 2, Tier 2)
- Magnetic flux density (Unit 3, Tier 2)
- Electrostatic energy density (Unit 2, Tier 2)
- Laplacian of a scalar (Unit 1, Tier 2)
- Vector algebra basics (Unit 1, Tier 2)
- Inductors and inductances (Unit 4, Tier 2)
FAQ
Which units of BEE301 carry the most marks?
Unit 2 (Electrostatic fields, 22% of past marks) and Unit 5 (Waves and Applications, 21% of past marks).
Do AKTU Electromagnetic Field Theory questions repeat?
Yes. On average 54% of the marks in each newer BEE301 paper came from questions already asked in an earlier paper, and 19 questions have appeared in more than one paper.
How is this list made?
Every question from the 4 papers (2021-22–2024-25) was mapped to the current AKTU syllabus and grouped with the same question from other years. Questions are ranked by how many papers they appeared in, then by how recently.