A triangular shaped wire carrying $10 A$ current is placed in a uniform magnetic field of $0.5\,T$, as shown in figure. The magnetic force on segment $CD$ is $....N$ $($ Given $BC = CD = BD =5\,cm )$.
JEE MAIN 2022, Medium
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$F _{ M }( CD )= BI \ell_{\text {eff }}$
$=0.5 \times(10) \times\left(5 \sin 60 \times 10^{-2}\right)$
$=0.216\,N$
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