Question

The two wires in the figure (Figure 1)are made of the same material. 

What is the current in the 2.0-mm-diameter segment of the wire? 

What is the electron drift speed in the 2.0-mm-diameter segment of the wire? 

Answer 1

solution : inertia, Formula for moment of I= Daeva Here, A = 18 = 22 A, = T2,2 = T at Az = T1 22² = π dz ² va, -->0 Vdes ( * According to the conservation of charge the Current entering into the imm segment of wire is Same as the current in the 2 mon segment of the wire. * Thus, the current in amm. diameter segment of wire is I=2A)

8 * Drift speed of B in feel) is, Ydz = ( x 2x 104 mis . = 5x105 mis Y = 50 cents