1.

The radius of the coil of a Tangent galvanometer. which has 10 turns is 0.1m. The current required to produce a deflection of 60° \[({{B}_{H}}=4\times {{10}^{-5}}T)\] is    [MP PET  2005]

A.          3 A
B.          1.1 A                             
C.          2.1 A                             
D.          1.5 A
Answer» C.          2.1 A                             


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