The magnetic flux (in weber) linked with a coil of resistance `10 Omega`  is varying with respect
Channel: Doubtnut
Date: 23/08/2020

The magnetic flux (in weber) linked with a coil of resistance `10 Omega`  is varying with respect to time t `phi = 4t^(2) + 2t + 1`. Then the current in the coil at time t = 1 second is