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Questions  

Two normal uniform magnetic fields F and H contain a magnetic needle making an angle 60o with F. Then the ratio of FH is

a
1 : 2
b
2 : 1
c
3 : 1
d
1 : 3

detailed solution

Correct option is D

From figure at equilibrium,tan60o=HF⇒3=HF⇒FH=13

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