ElectrostaticsHard
Question
A metallic rod of length l rotates at angular velocity about an axis passing through one end and perpendicular to the rod. If mass of electron is m and its charge is -e then the magnitude of potential difference between its two ends is
Options
A.
B.
C.
D.None of these
Solution
When rod rotates the centripetal acceleration of electron comes from electric field E =
Thus, ᐃV = -
= - 
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