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Current is flowing from a conductor si n...

Current is flowing from a conductor si nonuniform cross sectional area. If `A_1 gt A_2,` then find relation between
a. `i_1 and i_2`
b. `j_1 and j_2`
c. `(v_d)_1 and (v_d)_2`
(drift velocity) where I is current, j is current density, and V is drift velocity.

Text Solution

Verified by Experts

a. The charge flowing through a cross section per unit time
is `i. So, i_1 = i_2.`
b. Current density is `J = i//A. As A_1 gt A_2 then j_1lt j_2.`
c. We know `j = "ne"v_a . So drift velocity is v_1 = j/"ne". As j_1 lt jJ_2,`
the `(v_d)_1 lt (v_d)_2.`
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