Question $21$

$10$ pts

A $0\mathrm{.}90-$m radius cylindrical region contains a uniform electric field that is parallel to the axis and is increasing at the rate $5\mathrm{.}0{10}^{12}\frac{V}{m}*s.$ The magnetic field at a point $1\mathrm{.}2$ m from the axis has a magnitude of:

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

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

$1\mathrm{.}9{10}^{-5}T$

$2\mathrm{.}3{10}^{-5}T$

$0$ T