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प्रश्न
An electron moves straight inside a charged parallel plate capacitor of uniform charge density σ The time taken by the electron to cross the parallel plate capacitor when the plates of the capacitor are kept under constant magnetic field of induction `vec"B"` is-
विकल्प
`epsilon_circ "elB"/sigma`
`epsilon_circ "lB"/(sigmal)`
`epsilon_circ "lB"/("e"sigma)`
`epsilon_circ "lB"/sigma`
MCQ
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उत्तर
`epsilon_circ "lB"/sigma`
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