$[5\mathrm{.}55/11\mathrm{.}11$ Points$]$

SERCP$1117\mathrm{.}4.$P$\mathrm{.}015.$

Nichrome wire of cross$-$sectional radius $0\mathrm{.}795$ mm is to be used in winding a heating coil. If the coil must carry a current of $9\mathrm{.}50$ A when a voltage of $2\mathrm{.}70{10}^{2}V$ is applied across its ends, find the following.

$($a$)$ the required resistance of the coil

$$

$($b$)$ the length of wire you must use to wind the coil

Your response differs from the correct answer by more than $10\%.$ Double check your calculations. m

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