The waveform of alternating voltage is a:
Correct answer: B. Sinusoidal
- A. Square
- B. Sinusoidal
- C. Rectangular
- D. None of these
Explanation
The correct option is "Sinusoidal." This means that the waveform of alternating voltage follows a smooth, periodic pattern resembling a sine wave, with voltage varying smoothly and continuously over time, alternating between positive and negative values.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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