## Alternating Currents and Voltages Articles:

The Sine Wave: Many a time, alternating voltages and currents are represented by a sinusoidal wave, or simply a sinusoid. It is a very common type of alternating, current (ac) and alternating voltage. The sinusoidal wave is generally referred to as … (Read More)

Phase of Sine Wave: A sine wave can be measured along the X-axis on a time base which is frequency-dependent. A sine wave can also be expressed in terms of an angular measurement. This angular measurement … (Read More)

Sine Wave Equation: A Sine Wave Equation is graphically represented as shown in Fig. 4.10(a). The amplitude of a sine wave is represented on vertical axis. The angular measurement (in degrees or radians) is represented on horizontal axis. Amplitude A is … (Read More)

Measuring the Sine Wave: As the magnitude of the waveform is not constant, the Measuring the Sine Wave can be in different ways. These are instantaneous, peak, peak to peak, root mean square (rms) and average values. Instantaneous Value: Consider the sine wave … (Read More)

Phase Relation in Pure Resistor: When a sinusoidal voltage of certain magnitude is applied to a resistor, a certain amount of sine wave current passes through it. We know the relation between Ï…(t) and i(t) … (Read More)

Phase Relation in Pure Inductive Circuit: As discussed already, the voltage current relation in the case of an inductor is given by Consider the function i(t) = Im sin Ï‰t = ImÂ  or Imâˆ 0Â° where Vm = … (Read More)