A waveform shows the magnitude and direction of a voltage or current at every instance of time. Is this statement true or false?

The statement is true because a waveform represents how voltage or current changes over time, providing both the magnitude (size of the voltage or current) and the direction (whether it is positive or negative) at each specific moment. This is particularly evident in alternating current (AC) waveforms, but it also holds for direct current (DC) waveforms. In essence, waveforms visually depict electrical signals, revealing their characteristics such as amplitude and phase, which are crucial in understanding the behavior of electrical systems.

While some waveforms may represent specific scenarios or conditions that might alter their presentation, fundamentally, every waveform conveys these key details about voltage or current at all times.