Physics · 2014
JEE Main · 11 April 2014, Shift 1 · Q21
A coil of circular cross-section having 1000 turns and 4 cm^2 face area is placed with its axis parallel to a magnetic field which decreases by 10^-2…
A coil of circular cross-section having $\displaystyle 1000$ turns and $\displaystyle 4 \mathrm{~cm}^2$ face area is placed with its axis parallel to a magnetic field which decreases by $\displaystyle 10^{-2} \mathrm{~Wb} \mathrm{~m}^{-2}$ in $\displaystyle 0.01$ s. The e.m.f. induced in the coil is :
Official answer
(1)
$\displaystyle 400$ mV
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.