The two $0\mathrm{.}5$ m long parallel wires are separated by $1\mathrm{.}5$ cm$.$ Wire $1$ with radius $0\mathrm{.}5$ mm is made of Nichrome $($ Nichrome $=1\mathrm{.}50$x$10-6$m$)$ and Wire $2$ with radius $1$ mm is made of Carbon $($ Carbon $=3\mathrm{.}50$x$10-5$m$).$