Jee Main
Electromagnetic Induction
JEE Main 2021 (Online) 25th July Morning Shift
INTEGER+4 / -12021
A circular conducting coil of radius 1 m is being heated by the change of magnetic field \(\overrightarrow B\) passing perpendicular to the plane in which the coil is laid. The resistance of the coil is 2 \(\mu\)\(\Omega\). The magnetic field is slowly switched off such that its magnitude changes in time as
\(B = {4 \over \pi } \times {10^{ - 3}}T\left( {1 - {t \over {100}}} \right)\)
The energy dissipated by the coil before the magnetic field is switched off completely is E = ___________ mJ.
\(B = {4 \over \pi } \times {10^{ - 3}}T\left( {1 - {t \over {100}}} \right)\)
The energy dissipated by the coil before the magnetic field is switched off completely is E = ___________ mJ.