A square loop of wire, side length 10 cm is placed at an angle of $45^{0}$ with magnetic field that

Question

A square loop of wire, side length 10 cm is placed at an angle of $45^{0}$ with magnetic field that changes uniform 0.1 T to zero in 0.7 seconds. The induced current in the loop( its resistance is $1 \Omega$ ) is.\

Professor PC Thomas Classes · Answer

$\mathrm{a}=10^{-2} \mathrm{~m}^{2}$\ $\phi_{1}=\mathrm{B}_{1} \mathrm{~A} \cos 45=\frac{10^{-3}}{\sqrt{2}} \mathrm{wb}$\ $\phi_{2}=0$\ $\mathrm{E}=\frac{-\mathrm{d} \phi}{\mathrm{dt}}=10^{-3}$ volt\ $\mathrm{I}=\frac{\mathrm{e}}{\mathrm{R}}=\frac{10^{-3}}{1 \Omega}=10^{-3} \mathrm{~A}=1 \mathrm{~m} \mathrm{~A}$\