Question

When 3 V potential difference is applied a wire of length 0.1 m. having resistivity $1.6\times {10}^{-5}$ $\Omega m$, the electrons started moving. If the electron density in the wire is $6\times {10}^{10}{m}^{-1}$, the drift speed of electrons is

• A. $1.94\times {10}^{-6}m{s}^{-1}$
• B. $1.94\times {10}^{-5}m{s}^{-1}$
• C. $1.94\times {10}^{-8}m{s}^{-1}$
• D. $1.94\times {10}^{-7}m{s}^{-1}$

Answer 1

The correct option is C $1.94\times {10}^{-8}m{s}^{-1}$