At a distance of 10 cm from a long straight wire carrying current, the – McqOptions

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1.	At a distance of 10 cm from a long straight wire carrying current, the magnetic field is 0.04 T. At the distance of 40 cm, the magnetic field will be [MP PMT 1997]
A.	0.01 T
B.	0.02 T
C.	0.08 T
D.	0.16 T
Answer» B. 0.02 T

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