Question:medium
A train is running at a speed of \(72\ \text{km h}^{-1}\) on the rails separated by a distance of \(150\) cm. If the vertical component of earth's magnetic field at the place is \(4.0\times10^{-5}\) T. The induced emf on the rails is
A train is running at a speed of \(72\ \text{km h}^{-1}\) on the rails separated by a distance of \(150\) cm. If the vertical component of earth's magnetic field at the place is \(4.0\times10^{-5}\) T. The induced emf on the rails is
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In motional emf problems:
\[
\mathcal{E}=Blv
\]
Convert speed from km/h to m/s first.
Updated On: Apr 29, 2026
- \(1.2\) mV
- \(3\) mV
- \(2.5\) mV
- \(0.5\) mV
- \(4.2\) mV
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The Correct Option is A
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