1.

Suppose along a narrow cylindrical tube of area of cross-section (A) there is a flow of electrons with a drift vel (v). Then the electric current is (1) proportional to 1/v and A (2) proportional to v and 1/A (3) proportional to 1/v and A (4) proportional to v and A

Answer»

The Correct Option is (4) proportional to v and A



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