Physics · 2022
JEE Main · 26 July 2022, Shift 2 · Q58
In a coil of resistance 8 Ω,the magnetic flux due to an external magnetic field varies with time as φ=2/3(9-t^2). The value of total heat produced in…
In a coil of resistance $\displaystyle 8 \Omega$,the magnetic flux due to an external magnetic field varies with time as $\displaystyle \phi=\frac{2}{3}\left(9-t^2\right)$. The value of total heat produced in the coil, till the flux becomes zero, will be \_\_\_\_$\displaystyle J$.
Official answer
2
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