Physics · 2022
JEE Main · 26 June 2022, Shift 1 · Q42
The magnetic flux through a coil perpendicular to its plane is varying according to the relation φ=(5 t^3+4 t^2+2 t -5) Weber. If the resistance of…
The magnetic flux through a coil perpendicular to its plane is varying according to the relation $\displaystyle \phi=\left(5 \mathrm{t}^3+4 \mathrm{t}^2+2 \mathrm{t}-5\right)$ Weber. If the resistance of the coil is $\displaystyle 5$ ohm, then the induced current through the coil at $\displaystyle \mathrm{t}=2 \mathrm{~s}$ will be,
Official answer
(1)
15.$\displaystyle 6$ A
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.