A rod of length Land cross -section area A lies along the x - axis between x = 0 and x = l. The material obeys Ohm.s law and its resistivity varies along the rod according to rho(x)=rho_(0)e^(-x//L). Find the total resistance of the rod. The end of the rod at x = 0is at a potential V_(0) and it is zero at x = L.

A rod of length Land cross -section area A lies along the x - axis bet

1.	A rod of length Land cross -section area A lies along the x - axis between x = 0 and x = l. The material obeys Ohm.s law and its resistivity varies along the rod according to rho(x)=rho_(0)e^(-x//L). Find the total resistance of the rod. The end of the rod at x = 0is at a potential V_(0) and it is zero at x = L.
Answer» `(rho_(0)L)/(A)((1)/(e))` `(rho_(0)L)/(A)(e)` `(rho_(0)L)/(A)(1-(1)/(e))` `(rho_(0)L)/(A)(e-1)` Answer :C

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