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FAQs on Introduction: Electrical Measurements & Instrumentation - GATE Notes & Videos for Electrical Engineering - Electrical Engineering (EE)

1. What is the purpose of electrical measurements and instrumentation?
Ans. Electrical measurements and instrumentation are used to accurately determine the values of various electrical quantities such as voltage, current, resistance, and power. These measurements are essential for ensuring the proper functioning and safety of electrical systems and equipment.
2. What are the common instruments used for electrical measurements?
Ans. Some common instruments used for electrical measurements include voltmeters, ammeters, ohmmeters, wattmeters, and multimeters. Voltmeters measure voltage, ammeters measure current, ohmmeters measure resistance, wattmeters measure power, and multimeters can measure multiple electrical quantities.
3. How can electrical measurements be affected by external factors?
Ans. Electrical measurements can be affected by various external factors such as temperature, humidity, electromagnetic interference, and voltage fluctuations. These factors can introduce errors in the measurements and need to be accounted for or eliminated to ensure accurate results.
4. What is calibration, and why is it important in electrical measurements?
Ans. Calibration refers to the process of comparing the measurements of an instrument to known or traceable standards to determine its accuracy. It is important in electrical measurements to ensure that the instruments provide reliable and accurate readings. Regular calibration helps identify and correct any deviations or errors in the instrument's measurements.
5. How can electrical measurements contribute to energy conservation?
Ans. Electrical measurements play a crucial role in energy conservation by providing data on the energy consumption of various devices and systems. By accurately measuring and monitoring energy usage, it becomes possible to identify energy inefficiencies, optimize energy consumption, and implement energy-saving measures. This helps in reducing energy wastage and promoting sustainable energy practices.
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