A metal rod of length L rotates about one end at origin with a uniform angular velocity ω. The magnetic field radially f…
Q1
A metal rod of length L rotates about one end at origin with a uniform angular velocity ω. The magnetic field radially falls off as \(\mathrm{B}(\mathrm{r})={\mathrm{B}}_{∘}{\mathrm{e}}^{-\lambda \mathrm{r}};\lambda\) being a positive constant. The induced emf (neglecting centripetal force on electrons in the rod) is:
[JEE Main 2026, 5 Apr (Shift 2)]
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