Physics · 2015
NEET 2015 · 3 May · Code E · Q31
A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X-axis while…
A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X-axis while semicircular portion of radius R is lying in Y-Z plane. Magnetic field at point O is :
Official answer
(3)
$\displaystyle \overrightarrow{\mathrm{B}}=-\frac{\mu_0}{4 \pi} \frac{\mathrm{I}}{\mathrm{R}}(\pi \hat{i}+2 \hat{k})$
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NEET (UG) 2015 Physics question, with the answer from NTA’s final answer key. Where our answers come from.