What is a primary use of an oscilloscope in electrical testing?

An oscilloscope is primarily used to analyze waveforms in electrical testing. It allows engineers and technicians to visualize the shape, amplitude, frequency, and other characteristics of electrical signals in real time. By providing a graphical display of voltage changes over time, it helps users to identify issues such as signal integrity, distortion, noise, and timing problems in electronic circuits.

Understanding the shape and properties of waveforms is crucial in designing, troubleshooting, and maintaining electrical and electronic systems. This capability makes oscilloscopes indispensable tools in laboratories, manufacturing environments, and during field testing.