EMF of a rod, wheel or disc rotating about its end or centre in a magnetic field

1. A.
   $\frac{1}{2}B\pi F R^2$
2. B.
   $B\pi F R^2$
3. C.
   $\frac{1}{n}B\pi F R$
4. D.
   $B\pi FR^2 n$

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1. A.
   $Bl^{2}\omega$
2. B.
   $0.5Bl^{2}\omega$
3. C.
   $B/\omega$
4. D.
   $0.5 B/\omega$

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1. A.
   $\frac{eB}{\pi^2 l}$
2. B.
   $\frac{e}{\pi B l^2}$
3. C.
   $\frac{B^2 e}{\pi l}$
4. D.
   $\frac{\pi l^2 e}{B}$

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1. A.
   $B\pi R^2$
2. B.
   $2B\pi^2 R^2 \omega$
3. C.
   $B\pi R^2 \omega$
4. D.
   $\frac{BR^2\omega}{2}$

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1. A.
   $\pi BR^2$
2. B.
   $2\pi^2 BR^2\omega$
3. C.
   $\pi BR^2\omega$
4. D.
   $\frac{BR^2\omega}{2}$

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1. A.
   $5\ \mu V$
2. B.
   $5$ mV
3. C.
   $50\ \mu V$
4. D.
   $50$ mV

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