Question

Find the current flow through a copper wire of length 0.2m, area of cross section 1mm², when connected to a battery of 4v. Given that, electron mobility is 4.5×10~⁶m²s~¹v~¹ and charge on an electron is 1.6×10~19 c. The number density of electrons in copper wire is 8.5 × 10²⁸ m~³​

Answer 1

Explanation:

Find the current flow through a copper wire of length 0.2m, area of cross section 1mm², when connected to a battery of 4v. Given that, electron mobility is 4.5×10~⁶m²s~¹v~¹ and charge on an electron is 1.6×10~19 c. The number density of electrons in copper wire is 8.5 × 10²⁸ m~³