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Q12) What is the current density ()) in a conductor if the cross-sectional area (A) = 1 cmr. electron density (n) - 6*10m , and

Q12) What is the current density ()) in a conductor if the cross-sectional area (A) = 1 cmr. electron density (n) - 6*10"m , and drift speed ve = 2x 10* m/s

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