A charged particle of mass m and charge q initially at rest is released in an electric…
Physics · Class 12 · CBSE — Electric Charges and Fields
A charged particle of mass m and charge q initially at rest is released in an electric field of magnitude E. Its kinetic energy after time t will be
- \(\frac{2 E^{2} t^{2}}{m q}\)
- \(\frac{E^{2} q^{2} t^{2}}{2 m}\)
- \(\frac{E q^{2} m}{2 t^{2}}\)
- \(\frac{E q n}{2 t}\)
Answer
(B) E^ 2 q^ 2 t^ 2 2 m
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