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  4. An electron and a proton are situated in a uniform electric field. The ratio of their acceleration will be

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Q. An electron and a proton are situated in a uniform electric field. The ratio of their acceleration will be

NTA AbhyasNTA Abhyas 2022Electrostatic Potential and Capacitance

Solution:

$a=\frac{F}{m}$
force exprienced by charge q in external electric field E is $F=qE$
$\frac{a_{e}}{a_{m}}=\frac{\frac{F_{e}}{m_{e}}}{\frac{F_{p}}{m_{p}}}=\frac{m_{p} \, \left(e E\right)}{m_{e} \left(e E\right)}=\frac{m_{p}}{m_{e}}$ .