GATE Measurements and Control Systems: Electrical Measuring Instruments – Previous Year Questions

2 GATE previous year questions on Electrical Measuring Instruments (Measurements and Control Systems, Biomedical Engineering) with answers and explanations, from every paper.

1. GATE 2020 BM Q62 (2 marks, Numerical answer) – A PMMC instrument has magnetic flux density 1.5 T, torsional spring constant 2×10⁻⁶ N m/degree, coil area 2.5 cm² and 500 turns. Find angular…
2. GATE 2022 BM Q59 (2 marks, Numerical answer) – A moving-coil voltmeter has internal resistance 50 Ω and 100 equal scale divisions. A 1 V input gives full-scale deflection of 100 divisions. What…