1.

If a coil of 40 turns and area 4.0 cm2 is suddenly removed from a magnetic field, it is observed that a charge of \[2.0\times {{10}^{-4}}C\] flows into the coil. If the resistance of the coil is \[80\Omega \], the magnetic flux density in \[Wb/{{m}^{2}}\] is                       [MP PET 2005]

A.            0.5 
B.            1.0 
C.            1.5              
D.            2.0
Answer» C.            1.5              


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