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What Do You Understand By Retarded Current? |
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Answer» SINCE,the short electric dipole is so short, the current which is flowing through the dipole is assumed to be constant throughout its length. The effect of this current is not felt INSTANTANEOUS at a distance POINT only after an interval equal to the TIME required for the wave to propagate over the distance r is called the retardation time. The retarded current [I]=Io exp( JW' ( t - r / c ) ) Where w'r / c is the phase retardation. Since,the short electric dipole is so short, the current which is flowing through the dipole is assumed to be constant throughout its length. The effect of this current is not felt instantaneous at a distance point only after an interval equal to the time required for the wave to propagate over the distance r is called the retardation time. The retarded current [I]=Io exp( jw' ( t - r / c ) ) Where w'r / c is the phase retardation. |
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