A horizontal rectangular surface has dimensions $2\mathrm{.}85$ cm by $4\mathrm{.}20$ cm and is in a uniform magnetic field that is directed at an angle of $\backslash (26\mathrm{.}0^\{\backslash$circ$\}\backslash )$ above the horizontal.

Part A

What must the magnitude of the magnetic field be to produce a flux of $\backslash (4\mathrm{.}00\backslash$times $10^\{-4\}\backslash$mathrm$\{$~Wb$\}\backslash )$ through the surface?

Express your answer with the appropriate units.

$\backslash [$

B$=0\mathrm{.}372\backslash$quad $\backslash$mathrm$\{$~T$\}$

$\backslash ]$

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