8.nd the resistance of variable cross section wire having radious small section a large section b. And length of wire L. (resistivity of wire is given rho)
![Cross-sectional area [Encyclopedia Magnetica™ - magnetism, electromagnetism, fields, phenomena, devices, and more...] Cross-sectional area [Encyclopedia Magnetica™ - magnetism, electromagnetism, fields, phenomena, devices, and more...]](https://www.e-magnetica.pl/lib/exe/fetch.php/wire_area_e-m.png)
Cross-sectional area [Encyclopedia Magnetica™ - magnetism, electromagnetism, fields, phenomena, devices, and more...]
![A steel wire of length l and cross sectional area A is stretched by 1 cm under a given load. Whe... - YouTube A steel wire of length l and cross sectional area A is stretched by 1 cm under a given load. Whe... - YouTube](https://i.ytimg.com/vi/G5_b5onyIvs/maxresdefault.jpg)
A steel wire of length l and cross sectional area A is stretched by 1 cm under a given load. Whe... - YouTube
![7. The steel wire of cross-sectional area = 2 mm2 TY = 200 GPa, a = 10 °C] is stretched and tied firmly between two rigid supports, a temperature = 20°С. At 7. The steel wire of cross-sectional area = 2 mm2 TY = 200 GPa, a = 10 °C] is stretched and tied firmly between two rigid supports, a temperature = 20°С. At](https://toppr-doubts-media.s3.amazonaws.com/images/2359439/399d921c-8040-4b28-aecc-fe952efb1a0c.jpg)
7. The steel wire of cross-sectional area = 2 mm2 TY = 200 GPa, a = 10 °C] is stretched and tied firmly between two rigid supports, a temperature = 20°С. At
![The current in a copper wire having cross sectional area 2 mm Given E = 8.5 x10-3 V/m, p= 1.7 x 10-8 12-m (3) 2 A (4) 4 A (1) 1 A (2) 3 A nmf (a) when Ammeter read The current in a copper wire having cross sectional area 2 mm Given E = 8.5 x10-3 V/m, p= 1.7 x 10-8 12-m (3) 2 A (4) 4 A (1) 1 A (2) 3 A nmf (a) when Ammeter read](https://toppr-doubts-media.s3.amazonaws.com/images/5392489/a083f539-6ba2-4aa9-a1a1-8ff968727ce8.jpg)
The current in a copper wire having cross sectional area 2 mm Given E = 8.5 x10-3 V/m, p= 1.7 x 10-8 12-m (3) 2 A (4) 4 A (1) 1 A (2) 3 A nmf (a) when Ammeter read
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 .
![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)