A direct current flows in a solenoid of length \( L \) and radius \...

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A direct current flows in a solenoid of length \( L \) and radius \( R,(LR) \), producing a magnetic field of magnitude \( B_{0} \) inside the solenoid.
W
Which of the following diagrams best describes the
\( \mathrm{P} \) magnetic field lines in the vicinity of \( P \) at the end of the coil
\( (\mathrm{A}) \)
(B)
(C)
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