Question 173Electricity & Electronics - 1st Asst/Chief

The correct answer is A) Multimeter. A multimeter is the most convenient instrument for measuring current, voltage, and resistance because it is a versatile device that can perform all of these measurements. Multimeters are commonly used by electricians, electronics technicians, and others who work with electrical systems. They allow you to easily switch between measuring different electrical properties, making them a essential tool for troubleshooting and maintaining electrical equipment. The other options are not suitable for measuring current, voltage, and resistance. A megger is used to test insulation resistance, a barometer measures atmospheric pressure, and a hydrometer measures the specific gravity of liquids, such as battery acid. These instruments have specialized uses but do not provide the broad functionality of a multimeter.