Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 5 (Q.No. 17)
17.
convert into spherical co-ordinates.
A = 2 sinθ[sinθ tanΦa r + sinΦa θ + a Φ]
A = 2 sinΦ[sinΦ tanΦa r + sinΦa θ + a Φ]
A = 2 sinΦ[sinΦ tanΦa r - sinΦa θ - a Φ]
none of these
Answer: Option
Explanation:

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].

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