Reported Question / Answer
Correct Answer =9vd As I=Vd.A.e.alpha Vd= I/A.e.aplha If diameter is changed A=pi.r^2 A=pi.d^2/4 when diamter id d/3 A'=pi.d^2/9X4 A'=A/9 Put values in Vd Vd=9I/ A.e.alpha Vd=9vd
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