About this Video
In this final session, we consider the interference of the electromagnetic waves that are produced by more than one charge oscillating sinusoidally. We only consider fields at locations sufficiently far from the charges, where all fields other than the radiated ones can be ignored, and the rays from every charge to the region of interest can be approximated to be parallel.
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- Interference of Electromagnetic Waves (00:57:40)
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- Subtitle - SRT (English - US)
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- Calculation of the amplitude of the electric field and its polarization, at two locations, produced by two identical charges, separated by a small distance, and oscillating at right angles to each other. The calculation is done using the addition of trigonometric functions. (0:26:30)
- There are three oscillating charges, all in a row. The resultant oscillating electric field is calculated at a point which is in line with the charges and a long distance away from the charges. The calculation is done using the addition of complex amplitudes. (0:29:32)
Calculation of the amplitude of the electric field and its polarization, at two locations, produced by two identical charges, separated by a small distance, and oscillating at right angles to each other. The calculation is done using the addition of trigonometric functions.
There are three oscillating charges, all in a row. The resultant oscillating electric field is calculated at a point which is in line with the charges and a long distance away from the charges. The calculation is done using the addition of complex amplitudes.