JEE Main & Advanced
Physics
Electro Magnetic Induction
Question Bank
Self Evaluation Test - Electromagnetic Induction
question_answer
A coil of resistance 400Q 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: