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Magnetics question

2023 · 1 Feb · Shift 2 · Q60
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Magnetics question

2023 · 1 Feb · Shift 2 · Q60

JEE MainPhysicsMagneticsMCQ+4 / −1
As shown in the figure, a long straight conductor with semicircular arc of radius π10\frac{\pi}{10}10π​ m is carrying current I=3A\mathrm{I=3A}I=3A. The magnitude of the magnetic field, at the center O of the arc is : (The permeability of the vacuum =4π×10−7 NA−2=4\pi\times10^{-7}~\mathrm{NA}^{-2}=4π×10−7 NA−2) JEE Main 2023 (Online) 1st February Evening Shift Physics - Magnetic Effect of Current Question 83 English
  1. A
    4μT4\mu\mathrm{T}4μT
  2. B
    3μT3\mu\mathrm{T}3μT
  3. C
    6μT6\mu\mathrm{T}6μT
  4. D
    1μT1\mu\mathrm{T}1μT
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