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.
a wire of uniform cross section area is bent into a circuar loop of radius R . consider two points A and B on the loop , such that angle AOB =X .
![A copper wire of cross-sectional area 0.01cm^2 is under a tension of 20N. Find the decrease in the cross-sectional area. Young modulus of copper =1.1 times 10^{11}N m^{-2} and Poisson ratio=0.32. A copper wire of cross-sectional area 0.01cm^2 is under a tension of 20N. Find the decrease in the cross-sectional area. Young modulus of copper =1.1 times 10^{11}N m^{-2} and Poisson ratio=0.32.](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1586727_1303471_ans_be06cbea72174edfb3a897cecfc66fea.jpg)
A copper wire of cross-sectional area 0.01cm^2 is under a tension of 20N. Find the decrease in the cross-sectional area. Young modulus of copper =1.1 times 10^{11}N m^{-2} and Poisson ratio=0.32.
![Ratio of resistiviities of wires X and Y – effect of diameter on cross-sectional area | Evan's Space Ratio of resistiviities of wires X and Y – effect of diameter on cross-sectional area | Evan's Space](https://evantoh23.files.wordpress.com/2015/09/notes-page17.jpg)
Ratio of resistiviities of wires X and Y – effect of diameter on cross-sectional area | Evan's Space
![Resistance – Starter #2 Most wires are cylindrical in shape with a radius r and a length L. How would you calculate the cross sectional area (A) of the. - ppt video online download Resistance – Starter #2 Most wires are cylindrical in shape with a radius r and a length L. How would you calculate the cross sectional area (A) of the. - ppt video online download](https://slideplayer.com/10008623/32/images/slide_1.jpg)