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Magnetic Effect of Current — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
A current i ampere flows in a circular arc of wire whose radius is R, which subtend an angle 3π/2 radian at its centre. The magnetic induction B at the centre is
  • A
    $\frac{\mu_0 i}{R}$
  • B
    $\frac{\mu_0 \mathrm{i}}{2 R}$
  • C
    $\frac{2 \mu_0 \mathrm{i}}{R}$
  • ✓
    $\frac{3 \mu_0 \mathrm{i}}{8 R}$
✓

Answer

Correct option: D.
$\frac{3 \mu_0 \mathrm{i}}{8 R}$
(d) $\frac{3 \mu_0 \mathrm{i}}{8 R}$

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