A current carrying closed loop in the form of a right angle isoceles triangle ABC is placed in a uniform magnetic field acting along AB. If the magnetic force on the arm BC is $\overrightarrow{F}$ , the force on the arm AC is : <br>

Question

( A ) $-\sqrt{2} \overrightarrow{F}$
( B ) $\overrightarrow{F}$
( C ) $\sqrt{2} \overrightarrow{F}$
( D ) $- \overrightarrow{F}$