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Define phase difference and path difference of ac circuit.give example

Define phase difference and path difference of ac circuit.give example

Grade:12

1 Answers

Ramesh V
70 Points
11 years ago

When capacitors or inductors are involved in an AC circuit, the current and voltage do not peak at the same time. The fraction of a period difference between the peaks expressed in degrees is said to be the phase difference. The phase difference is <= 90 degrees. It is customary to use the angle by which the voltage leads the current. This leads to a positive phase for inductive circuits since current lags the voltage in an inductive circuit. The phase is negative for a capacitive circuit since the current leads the voltage. The phase relation is often depicted graphically in a phasor diagram.

But, Path difference is the actual measurable difference in distance that two waves travel from a source to a common point.
These 2 are related by the following equation:
phase difference = (path difference / 2pi )* the wavelengthhere frequency of AC circuit is known, from which wavelength is determined and phase difference is determined if path difference is known and vice versa--regardsRamesh

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