A circular coil is radius 5 cm has 500 turns of a wire. The approximat – McqOptions

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1.	A circular coil is radius 5 cm has 500 turns of a wire. The approximate value of the coefficient of self-induction of the coil will be-
A.	\[25\text{ }mH\]
B.	\[25\times {{10}^{-3}}\,mH\]
C.	\[50\times {{10}^{-3}}\,mH\]
D.	\[50\times {{10}^{-3}}\,H\]
Answer» B. \[25\times {{10}^{-3}}\,mH\]

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