Magnetic Field Ratio Wire (Jee Mains) | ExamDuo
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Biot-Savart and Ampere's Law
Medium
Magnetic Field Ratio Wire
A long, straight wire of radius a carries a current distributed uniformly over its cross-section. The ratio of the magnetic fields due to the wire at distance
a
3
and 2a, respectively from the axis of the wire is :
SELECT ONE OPTION
A
2
3
B
3
2
C
1
2
D
2
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