A closely wound flat circular coil of 25 turns of wire has diameter of – McqOptions

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1.	A closely wound flat circular coil of 25 turns of wire has diameter of 10 cm and carries a current of 4 ampere. Determine the flux density at the centre of a coil [AIIMS 2001]
A.	\[1.679\times {{10}^{-5}}tesla\]
B.	\[2.028\times {{10}^{-4}}tesla\]
C.	\[1.257\times {{10}^{-3}}tesla\]
D.	\[1.512\times {{10}^{-6}}tesla\]
Answer» D. \[1.512\times {{10}^{-6}}tesla\]

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