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  4. 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 (Given BC = CD = BD =5 cm ).

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Q. 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
(Given $BC = CD = BD =5 \,cm$ ).Physics Question Image

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Solution:

$ F _{ M }( CD )= BI \ell_{ eff } $
$ =0.5 \times(10) \times\left(5 \sin 60 \times 10^{-2}\right) $
$ =0.216\, N $