Consider the circular loop having current $i$ and with central point $O$. The magnetic field at the central point $O$ is
Consider the circular loop having current $i$ and with central point $O$. The magnetic field at the central point $O$ is
- [AIIMS 2015]
- A
$\frac{2 \mu_0 i }{3 \pi R }$ acting downward
- B
$\frac{5 \mu_0 i }{12 R }$ acting downward
- C
$\frac{6 \mu_0 i }{11 R }$ acting downward
- D
$\frac{3 \mu_0 i }{7 R }$ acting upward
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In figure two parallel infinitely long current carrying wires are shown. If resultant magnetic field at point $A$ is zero. Then determine current $I.$ (in $A$)
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- [AIIMS 2019]
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- [JEE MAIN 2020]
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Show magnetic field lines due to current carrying loop.
Show magnetic field lines due to current carrying loop.