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The number of free electrons per unit volume in copper is n. The electrons, each of charge q are flowing systematically along the length of the wire with velocity V and constitute an electric current I. If the area of cross-section is A, then the current density in the wire is

The number of free electrons per unit volume in copper is n. The electrons, each of charge q are flowing systematically along the length of the wire with velocity V and constitute an electric current I. If the area of cross-section is A, then the current density in the wire is

Grade:12

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
 
current density in the wire  will be  = nq V
hope it helps
 
Regards
Arun (askIITians forum expert)
 

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