Questions
What is the magnetic field at O due to current in the B infinite wire forming a loop as shown in fig. ?
a
μ04πidcosϕ1+cosϕ2
b
4π2id
c
μ04πidsinϕ1+sinϕ2
d
μ04πid
detailed solution
Correct option is A
Here required angles θ1 and θ2 are 90∘−ϕ1 and 90∘−ϕ2 HenceB =μ0i4πdsin90∘−ϕ1+sin90∘−ϕ2=μ0I˙4πdcosϕ1+cosϕ2Talk to our academic expert!
Similar Questions
ABCD is a square loop made of a uniform conducting wire. The current enters the loop at A and leaves at D. The magnetic field is
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