Physics · Electromagnetic Theory
Which of the following expressions represents the differential length vector (dl) when a point P(x, y, z) is shifted to a new location P' in the rectangular (Cartesian) coordinate system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1dl = dx ax + dy ay + dz az✓
- 2dl = dr ar + r dψ aψ + dz az
- 3P = Prar + Pψaψ + Pzaz
- 4|dl| = √((dx)2 + (dy)2 + (dz)2)
Correct answer
dl = dx ax + dy ay + dz az
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