An electron having charge e and mass m starts from lower plate of two metallic plates…
Physics · JEE Advanced · NTA Exams — Electrostatics
An electron having charge e and mass m starts from lower plate of two metallic plates separated by a distance d, if the potential difference between the plates is V, the time taken by the electron to reach the upper plate is given by (ignore gravity)
- \(\sqrt{\frac{2 \mathrm{md}^{2}}{\mathrm{eV}}}\)
- \(\sqrt{\frac{\mathrm{md}^{2}}{\mathrm{eV}}}\)
- \(\sqrt{\frac{\mathrm{md}^{2}}{2 \mathrm{eV}}}\)
- \(\frac{2 \mathrm{md}^{2}}{\mathrm{eV}}\)
Answer
(A) 2 md ^ 2 eV
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