Rankers Physics

Ampere's Circuital Law: Practice Problem & Solution

In the adjacent figure is shown a closed path P. A long straight conductor carrying a current I passes through O and perpendicular to the plane of the paper. Then which of the following holds good ?     Ampere's Circuital Law diagram: In the adjacent figure is shown a closed
\[\int_{P}^{}\overrightarrow{B}.\overrightarrow{dl}=0\]
\[\int_{P}^{}\overrightarrow{B}.\overrightarrow{dl}=\mu_{0}I\]
\[\int_{P}^{}\overrightarrow{B}.\overrightarrow{dl}>\mu_{0}I\]
None of these

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Ampere's Circuital Law. Understanding the underlying formula is key to arriving at the correct answer below:

As Current enclosed is zero.  \[\int_{P}^{}\overrightarrow{B}.\overrightarrow{dl}=0\]

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