Question

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

Answer 1

Let the uniform electric field be E.

force on charged particle in electrica field = qE

force on proton=eE (charge on proton +e)

Mass of proton(Mp) × accln of proton(Ap) = eE

Mp × Ap = eE -(I)

force on electron=eE (charge on electron -e)

Mass of electron(Me) × accln of electron(Ae) = eE

Me × Ae = eE -(ii)

divide (I) and (ii)

Ae/Ap = Mp/Me