Final answer:
The instantaneous voltage waveform found in Part II Procedure 2 is described as a sine wave because it follows a sinusoidal pattern, oscillating between positive and negative maximum amplitudes. The sine wave is a mathematical representation that accurately describes the behavior of AC voltage in circuits. By using an oscilloscope, one can determine the frequency, wavelength, and period of the sinusoidal waveform in order to understand the AC electrical properties of a circuit.
Step-by-step explanation:
The instantaneous voltage waveform found in Part II Procedure 2 is described as a sine wave because it exhibits the characteristics of a sine function. A sine wave is a smooth, periodic oscillation that repeats itself over time. The voltage waveform in AC circuits follows a sinusoidal pattern, where the voltage oscillates between positive and negative maximum amplitudes at regular intervals.
In AC circuits, the voltage is sinusoidal because it can be represented by a sine function. This is due to the nature of AC electricity, where the current changes direction periodically. The sinusoidal waveform is a mathematical representation that accurately describes the behavior of AC voltage in circuits.
The sinusoidal nature of the voltage waveform can be observed by analyzing the frequency, wavelength, and period of the waveform. By using an oscilloscope, one can precisely determine the frequency and wavelength of the sinusoidal waveform in order to understand the AC electrical properties of a circuit.