Question Number 64730 by Tanmay chaudhury last updated on 20/Jul/19
Answered by ajfour last updated on 20/Jul/19
$${E}=\rho{j} \\ $$$$\Rightarrow\:{E}=\frac{\rho{I}}{\mathrm{2}\pi{r}^{\mathrm{2}} } \\ $$$$\bigtriangleup{V}\:=\int{Eds}\:=\:\frac{\rho{I}}{\mathrm{2}\pi}\left(\frac{\mathrm{1}}{{D}}−\frac{\mathrm{1}}{{D}+{w}}\right) \\ $$$${i}=\frac{\bigtriangleup{V}}{{R}}=\:\frac{\rho{Iw}}{\mathrm{2}\pi{RD}\left({D}+{w}\right)} \\ $$$$\:\:\:\:=\frac{\mathrm{250}}{\mathrm{51}}\:\approx\:\mathrm{4}.\mathrm{9}{A}\: \\ $$
Commented by Tanmay chaudhury last updated on 21/Jul/19
$${thank}\:{you}\:{sir} \\ $$
Answered by Tanmay chaudhury last updated on 21/Jul/19
Commented by Tanmay chaudhury last updated on 21/Jul/19
