In the given figure the magnetic flux through the loop increases according to the relation \( \p...

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In the given figure the magnetic flux through the loop increases according to the relation \( \phi_{B}(t)=10 t^{2} \)
P
\( +20 t \), where \( \phi_{B} \) is in milliwebers and \( t \) is in seconds. The magnitude of current through \( R=2 \Omega \) resistor at
W
\( t=5 \mathrm{~s} \) is
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