InterviewSolution
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| 1. |
convert into spherical co-ordinates. |
| Answer» Spherical : Ar = A. a r =.sinθ.sinφ = Aθ = A. a θ =.cosφsinφ = 2 sin2φ Aφ = Aa φ =cosφ = 2 sinφ ∴ A = a r + 2sin2φa θ + 2sinφaφ A = 2sinφ[sinθ tanφ a r + sinφa θ + aφ]. | |