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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A current I is passing through a wire having two sections P and O of uniform diameters d and d/2 respectively. If the mean drift velocity of electrons in section P and Q is denoted by vP and vQ respectively, then

A current I is passing through a wire having two sections P and O of uniform diameters d and d/2 respectively. If the mean drift velocity of electrons in section P and Q is denoted by vP and vQ respectively, then

A steady current flows in a metallic conductor of non- uniform cross - section. The quantity constant along the length of the conductor is /are