CGPET 2016 Solved Paper

Section: Physics

Question : 21 of 150

Marks: +1, -0

Two wire loops PQRSP formed by joining two semicircle wires of radii R1 and R2 carrying a current I as shown in figure. The magnetic field at centre C is

‌
µ0l
4
(‌
1
R1
−‌
1
R2
)
‌
µ0l
4
(‌
1
R2
−‌
1
R1
)
‌
µ0l
2
(‌
1
R1
−‌
1
R2
)
‌
µ0l
2
(‌
1
R2
−‌
1
R1
)

Validate

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