The GATE Grind

GATE Electromagnetic Fields: Inductance, Magnetomotive force, Reluctance, Magnetic circuits, Self and Mutual inductance of simple configurations – Previous Year Questions

6 GATE previous year questions on Inductance, Magnetomotive force, Reluctance, Magnetic circuits, Self and Mutual inductance of simple configurations (Electromagnetic Fields, Electrical Engineering) with answers and explanations, from every paper.

  1. GATE 2017 EE Q14 (1 mark, Multiple choice) – A solid iron cylinder is placed in a region containing a uniform magnetic field such that the cylinder axis is parallel to the magnetic field…
  2. GATE 2016 EE Q24 (1 mark, Numerical answer) – A soft-iron toroid is concentric with a long straight conductor carrying a direct current I. If the relative permeability r of soft-iron is 100, the…
  3. GATE 2018 EE Q36 (2 marks, Multiple choice) – A transformer with toroidal core of permeability is shown in the figure. Assuming uniform flux density across the circular core cross-section of…
  4. GATE 2019 EE Q54 (2 marks, Numerical answer) – The magnetic circuit shown below has uniform cross-sectional area and air gap of 0.2 cm. The mean path length of the core is 40 cm. Assume that…
  5. GATE 2020 EE Q65 (2 marks, Numerical answer) – A conducting square loop of side length 1 m is placed at a distance of 1 m from a long straight wire carrying a current I=2 A as shown below. The…
  6. GATE 2025 EE Q52 (2 marks, Multiple select) – Consider two coupled circuits, having self-inductances L 1 and L 2, that carry non-zero currents I 1 and I 2, respectively. The mutual inductance…