GATE Electricity and Magnetism: Magnetic fields and induction – Previous Year Questions
7 GATE previous year questions on Magnetic fields and induction (Electricity and Magnetism, Instrumentation Engineering) with answers and explanations, from every paper.
- GATE 2021 IN Q49 – The electrically conductive square-section bar shown rests on a plane. Its mass is 1 kg and depth along y is 0.5 m. Friction coefficient is 0.1 and…
- GATE 2022 IN Q57 – A conducting semicircular loop of radius R=0.1 m has its diameter centred at the origin and rotates in the x–y plane at =20 rad/s. A magnetic field…
- GATE 2023 IN Q27 – The force per unit length between two infinitely long parallel conductors, with a gap of 2 cm between them is 10 µN/m. When the gap is doubled, the…
- GATE 2023 IN Q55 – A 4 H inductor carries i 1(t)=(200 t) mA and is mutually coupled to a 5 H inductor carrying i 2(t)=2(200 t) mA, with dot polarities shown. The…
- GATE 2024 IN Q36 – A circular wire of radius a has current density J=ks2, where k is constant and s is radial distance from the axis (0 s a). Its total current is
- GATE 2025 IN Q30 – A 60 V DC source with internal resistance R int=0.5\ is connected through a switch to infinitely long rails separated by l=1 m, as shown. They lie in…
- GATE 2026 IN Q38 – A straight thin wire carrying a current I=1\ A in the direction n=( i+2 j+ k)/6 is placed inside a magnetic field B=(2 i+2 k)\ T. The force per unit…