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Magnetic Effect of Current — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
Two long straight wires are set parallel to each other. Each carries a current $i$ in the same direction and the separation between them is $2r.$ The intensity of the magnetic field midway between them is
  • A
    $\mu_0 \mathrm{i} / \mathrm{r}$
  • B
    $4 \mu_0 \mathrm{i} / \mathrm{r}$
  • ✓
    Zero
  • D
    $\mu_0 \mathrm{i} / 4 \mathrm{r}$
✓

Answer

Correct option: C.
Zero
Zero

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