A metal rod of length L in a region of space where a constant magnetic field points into the page rotates about an axis through its center at constant angular velocity ?. The ends, A and E, make contact with a split ring that connects to an external circuit. The current in the external circuit of resistance R has magnitude





a.

0.



b.

a

Physics & Space Science

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Describe the process of precession

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In the context of electron shells, a positive ion is an atom with:

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If we know the wavelength of a light beam, how can we calculate the corresponding frequency?

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