The GATE Grind

GATE Sensors and Industrial Instrumentation: Piezoelectric electromagnetic and Hall sensors – Previous Year Questions

4 GATE previous year questions on Piezoelectric electromagnetic and Hall sensors (Sensors and Industrial Instrumentation, Instrumentation Engineering) with answers and explanations, from every paper.

  1. GATE 2022 IN Q17 (1 mark, Multiple choice) – A Hall sensor is based on the principle of
  2. GATE 2024 IN Q29 (1 mark, Numerical answer) – The figure shows the readout circuit of a piezoelectric sensor. A generated charge q p produces a change of -2 V at V x. The corresponding change in…
  3. GATE 2025 IN Q13 (1 mark, Multiple choice) – The working of the hand-held metal detector most widely used by security personnel for human frisking is based on the principle of
  4. GATE 2026 IN Q63 (2 marks, Numerical answer) – A current-carrying semiconductor of thickness 0.7 mm is placed in a transverse magnetic field. The measured Hall voltage is 0.9 mV and the current is…