JEE Mains Model Paper 7

© examsiri.com
Question : 6 of 90
 
Marks: +1, -0
When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is2.5 × 104ms1. If the electron density in the wire is 8 × 1028m3, the resistivity of the material isclose to :
Go to Question: