railway RRB JE (CBT I + CBT II) Mock Test 2024 Sensors and Industrial Instrumentation Basics of Transducers
Consider the following transducers:
1. LVDT
2. Piezoelectric
3. Thermocouple
4. Photovoltaic cell
Which of the above are active transducers?1
1, 2 and 3
2
1, 2 and 4
3
2 and 3 only
4
2, 3 and 4