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Magnetics question

2025 · 8 Apr · Shift 2 · Q56
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  5. /2025 · 8 Apr · Shift 2 · Q56

Magnetics question

2025 · 8 Apr · Shift 2 · Q56

JEE MainPhysicsMagneticsMCQ+4 / −1
Figure shows a current carrying square loop ABCD of edge length is ‘a’ lying in a plane. If the resistance of the ABC part is r and that of ADC part is 2r, then the magnitude of the resultant magnetic field at centre of the square loop is JEE Main 2025 (Online) 8th April Evening Shift Physics - Magnetic Effect of Current Question 10 English
  1. A
    2μ0I3πa\frac{2\mu_0 I}{3\pi a}3πa2μ0​I​
  2. B
    2μ0I3πa\frac{\sqrt{2}\mu_0 I}{3\pi a}3πa2​μ0​I​
  3. C
    3πμ0I2a\frac{3\pi\mu_0 I}{\sqrt{2}a}2​a3πμ0​I​
  4. D
    μ0I2πa\frac{\mu_0 I}{2\pi a}2πaμ0​I​
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