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Moving Charges and Magnetism — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
MCQ
Same current is flowing through two parallel conducting wires at a distance $d$ in opposite directions. The intensity of magnetic field at the midpoint between the wires is :
  • A
    $\frac{\mu_{ o } i}{2 \pi d}$
  • ✓
    $\frac{2 \mu_0 i}{\pi d}$
  • C
    $\frac{\mu_0 i}{\pi d^2}$
  • D
    zero
✓

Answer

Correct option: B.
$\frac{2 \mu_0 i}{\pi d}$
(b)$\frac{2 \mu_0 i}{\pi d}$

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