A coil of resistance 400 Ω is placed in a magnetic field. If the magnetic flux \phi (wb) linked with the coil varies with time t( {\sec}) as \phi=50 {\t}^2+4. The current in the coil at {\t}=2 {\sec} is :

AIPMT 2012 Physics and Chemistry Paper

Question : 8 of 100

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A coil of resistance 400Ω is placed in a magnetic field. If the magnetic flux φ (wb) linked with the coil varies with time t(sec) as φ=50t2+4. The current in the coil at t=2‌sec is :

0.5A
0.1A
2A
1A

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