A long straight wire, carrying current $I$ is bent at its mid-point to form an angle of $45^{\circ}$. Induction of magnetic field (in tesla) at point $P$, distant $R$ from point of bending is equal to
A long straight wire, carrying current $I$ is bent at its mid-point to form an angle of $45^{\circ}$. Induction of magnetic field (in tesla) at point $P$, distant $R$ from point of bending is equal to
- [AIIMS 2018]
- A
$\frac{(\sqrt{2}-1) \mu_{0} l}{4 \pi R}$
- B
$\frac{(\sqrt{2}+1) \mu_{0} I}{4 \pi R}$
- C
$\frac{(\sqrt{2}-1) \mu_{0} I}{4 \sqrt{2} \pi R}$
- D
$\frac{(\sqrt{2}+1) \mu_{0} I}{4 \sqrt{2} \pi R}$
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- [AIPMT 2002]
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