What is the difference between analog and digital instruments in electrical measurement?
1 Answer
Analog instruments use a continuously moving pointer or needle to represent the measured quantity. Example: moving-coil ammeter, analog voltmeter. They are simple and give a visual trend but have lower accuracy and are prone to parallax error.
Digital instruments display readings in numerical form (using digital circuits). Example: digital multimeter. They are more accurate, easier to read, and can store or process data, but they may be costlier and require power supply/electronics.