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Please solve this problem in the picture urgently...let, radius of the sphere is R
Asked by miaowmira1900 | 03 Sep, 2019, 12:10: AM
Expert Answer
Current density = charge density × velocity = σ × ω R sinθ
As seen from figure current is in the direction of Φ , hence J = σωR sinθ 
Answered by Thiyagarajan K | 03 Sep, 2019, 01:24: PM
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