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Questions and Answers
Which instruments are used for the measurement of DC Quantities only?
Which instruments are used for the measurement of DC Quantities only?
- Moving Coil instruments (correct)
- Linear Variable Differential Transformer (LVDT)
- Digital Multimeter
- Photoelectric transducer
Which instruments are used for the measurement of both DC & AC Quantities?
Which instruments are used for the measurement of both DC & AC Quantities?
- Piezoelectric transducer
- Digital storage Oscilloscope
- Moving Iron instruments (correct)
- Thermistors
Which transducer is based on the principle of change in resistance with temperature?
Which transducer is based on the principle of change in resistance with temperature?
- Thermocouple (correct)
- Opto-couplers
- Piezoelectric transducer
- Photodiodes
Which transducer is used for converting light energy into electrical energy?
Which transducer is used for converting light energy into electrical energy?
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Which sensor is used for detecting the presence or absence of an object without physical contact?
Which sensor is used for detecting the presence or absence of an object without physical contact?
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Study Notes
Measurement Instruments
- DC Quantities are measured using Ammeters, Voltmeters, and Ohmmeters.
- Both DC and AC Quantities are measured using Multimeters.
Transducers
- Thermistor is a transducer based on the principle of change in resistance with temperature.
- Photovoltaic cell is a transducer used for converting light energy into electrical energy.
Sensors
- Proximity sensors are used for detecting the presence or absence of an object without physical contact.
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