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Magnetics question

2019 · 12 Jan · Shift 1 · Q67
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Magnetics question

2019 · 12 Jan · Shift 1 · Q67

JEE MainPhysicsMagneticsMCQ+4 / −1
As shown in the figure, two infinitely long, identical wires are bent by 90o and placed in such a way that the segments LP and QM are along the x-axis, while segments PS and QN are parallel to the y-axis. If OP = OQ = 4cm, and the magnitude of the magnetic field at O is 10–4 T, and the two wires carry equal currents (see figure), the magnitude of the current in each wire and the direction of the magnetic field at O will be (μ\muμ 0 = 4 π×\pi \timesπ× 10–7 NA–2) : JEE Main 2019 (Online) 12th January Morning Slot Physics - Magnetic Effect of Current Question 169 English
  1. A
    40 A, perpendicular into the page
  2. B
    40 A, perpendicular out of the page
  3. C
    20 A, perpendicular into the page
  4. D
    40 A, perpendicular out of the page
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