The magnetic field due to a current carrying circular loop of radius 3 – McqOptions

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1.	The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is \[54\,\mu T\]. What will be its value at the centre of loop?
A.	\[125\mu T\]
B.	\[150\mu T\]
C.	\[250\mu T\]
D.	\[75\mu T\]
Answer» D. \[75\mu T\]

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