A circular loop of radius \( r \), carrying a current \( I \) lies in \( y-z \) plane with its c...

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A circular loop of radius \( r \), carrying a current \( I \) lies in \( y-z \) plane with its centre at the origin. The net
\( \mathrm{P} \)
magnetic flux through the loop is:
W
(1) directly proportional to \( r \)
(2) zero
(3) inversely proportional to \( r \)
(4) directly proportional to \( I \)
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