A uniform wire is held at one endand stretched by applying force at other end. If product of length of wire and area of cross section of wire remains unchanged, then Poisson's
Calculate the electric field in a copper wire of cross sectional area 2mm^2 carrying a current of 2 ampere; given that resistivity of copper wire is 1.7×10^ 8 ohm m.
![Calculate the area of cross-section of a wire if its length is 1.0 m its resistance is 23 Ω - YouTube Calculate the area of cross-section of a wire if its length is 1.0 m its resistance is 23 Ω - YouTube](https://i.ytimg.com/vi/3hzXtQ94uvc/maxresdefault.jpg)
Calculate the area of cross-section of a wire if its length is 1.0 m its resistance is 23 Ω - YouTube
![homework and exercises - If the cross-sectional area of a wire doubles shouldn't the current also double? - Physics Stack Exchange homework and exercises - If the cross-sectional area of a wire doubles shouldn't the current also double? - Physics Stack Exchange](https://i.stack.imgur.com/Eqquh.png)