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Magnetics question

2025 · 28 Jan · Shift 2 · Q59
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Magnetics question

2025 · 28 Jan · Shift 2 · Q59

JEE MainPhysicsMagneticsMCQ+4 / −1
JEE Main 2025 (Online) 28th January Evening Shift Physics - Magnetic Effect of Current Question 20 EnglishAn infinite wire has a circular bend of radius a, and carrying a current I as shown in the figure. The magnitude of magnetic field at the origin O of the arc is given by:
  1. A
    μ02πIa[π2+2]\frac{\mu_0}{2 \pi} \frac{\mathrm{I}}{\mathrm{a}}\left[\frac{\pi}{2}+2\right]2πμ0​​aI​[2π​+2]
  2. B
    μ04πIa[3π2+1]\frac{\mu_0}{4 \pi} \frac{\mathrm{I}}{\mathrm{a}}\left[\frac{3 \pi}{2}+1\right]4πμ0​​aI​[23π​+1]
  3. C
    μ04πIa[π2+1]\frac{\mu_0}{4 \pi} \frac{\mathrm{I}}{\mathrm{a}}\left[\frac{\pi}{2}+1\right]4πμ0​​aI​[2π​+1]
  4. D
    μ04πIa[3π2+2]\frac{\mu_0}{4 \pi} \frac{\mathrm{I}}{\mathrm{a}}\left[\frac{3 \pi}{2}+2\right]4πμ0​​aI​[23π​+2]
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