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 mT. What will be its value at the centre of the loop [AIEEE 2004]
A.	250 m T
B.	150 m T
C.	125 m T
D.	75 m T
Answer» B. 150 m T

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