Practicing Success
Practicing Success
CUET Preparation Today
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$\text{Magnetic Flux passing through the circular loop is } B\pi r^2$ $\text{ Induced EMF is } \xi = \frac{d\phi}{dt} =- \pi r^2 \frac{dB}{dt} = -\pi r^2 B_0^2 -e^{-t} = \pi r^2 B_0^2 e^{-t} $ $\text{At t= 0 } \xi = \pi r^2 B_0^2 $ $P = \frac{\xi^2}{R} = \frac{\pi^2 r^4 B_0^2}{R^2}$ |
