Auniform wire of resistance R is starcheduntil its length doubles. Assumingits density and resistivity remain constant, what is its new resistance.
Added by Ali K.
Step 1
Step 1: Calculate the final cross-sectional area after the wire is stretched: Given initial cross-sectional area, \(A_0\), and final length, \(L_0 = 2L\), we have \(A = \frac{A_0}{2}\). Show more…
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