A) 7 divisions,
B) 14 divisions.
C) 0 divisions,
D) 21 divisions.
Correct Answer: B
Solution :
When the coil is rotated through \[180{}^\circ C\], the flux changes from \[\Phi \]to\[-\Phi \] Hence change in flux is \[\Phi -(-\Phi )=2\Phi .\]Further \[\Phi =Mi\] \[\therefore \]change in current =2i This cause a deflection of 14 divisions Hence, the correction option is [b].You need to login to perform this action.
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