Physics · 2019
JEE Main · 10 January 2019, Shift 2 · Q21
The self induced emf of a coil is 25 volts. When the current in it is changed at uniform rate from 10 A to 25 A in 1 s, the change in the energy of…
The self induced emf of a coil is $\displaystyle 25$ volts. When the current in it is changed at uniform rate from $\displaystyle 10$ A to $\displaystyle 25$ A in $\displaystyle 1$ s , the change in the energy of the inductance is :
Official answer
(1)
437.$\displaystyle 5$ J
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.