Question $1(1$ point$)$

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A circular loop of wire of radius $10$ cm carries a current of $6\mathrm{.}0$ A $.$ What is the magnitude of the magnetic field at the center of the loop? $)=(4{10}^{-7}(T)*\frac{m}{A}$

$3\mathrm{.}8{10}^{-8}T$

$1\mathrm{.}2{10}^{-7}T$

$1\mathrm{.}2{10}^{-5}T$

$3\mathrm{.}8{10}^{-5}T$

$3\mathrm{.}8{10}^{-7}T$