Question

For adjoining fig.,The magnetic field at point, 'P' will be:

• A. $\frac {μ_0}{4\pi}Θ$
• B. $\frac {μ_0}{\pi}⊗$
• C. $\frac {μ_0}{2\pi}⊗$
• D. $\frac {μ_0}{2\pi}Θ$

Answer 1

Answer: (C)

$\frac {μ_0}{2\pi}⊗$

Answer 2

$Magnetic\ field\ due\ to\ 5A→ \frac {5μ_0}{2\pi×2.5} = \frac {2µ_0}{2\pi}⊗$

$Magnetic\ field\ due\ to\ 2.5A→ \frac {2.5μ_0}{2\pi×2.5} = \frac {µ_0}{2\pi}Θ$

$Resultant \ Magnetic\ field=\frac {2μ_0}{2\pi}-\frac {µ_0}{2π}=\frac {µ_0}{2π}⊗$

So, the correct option is (C): $\frac {μ_0}{2\pi}⊗$