A circular loop of radius 0.0157m carries a current of 2.0 amp. The magnetic field at the centre of the loop is \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp-m)\] [MP PET 2000]

\[2.5\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]

\[\text{1}\text{.57}\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]

\[8.0\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]

\[\text{3}.14\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]

A circular loop of radius 0.0157m carries a current of 2.0 amp. The ma

1.	A circular loop of radius 0.0157m carries a current of 2.0 amp. The magnetic field at the centre of the loop is \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp-m)\] [MP PET 2000]
A.	\[\text{1}\text{.57}\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]
B.	\[8.0\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]
C.	\[2.5\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]
D.	\[\text{3}.14\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]
Answer» C. \[2.5\times \text{10}{{\text{ }}^{\text{-5}}}\,weber/{{m}^{2}}\]