A proton and an electron are placed in a uniform electric field. - Vidyadip

MCQ

A proton and an electron are placed in a uniform electric field.

A
The electric forces acting on them will be equal.
B
The magnitudes of the forces will be equal.
C
Their accelerations will be equal.
✓
The magnitudes of their accelerations will be unequal.

✓

Answer

Correct option: D.

The magnitudes of their accelerations will be unequal.

Proton contain positive charge $= 1.6 \times 10^{-19} = e$
Electron contain negative charge $= -1.6 \times 10^{-19}= -e$
Force inoniforma electric field is $= qE$
$\therefore\ $The Magniludes of Electric force is equal But direction of electric force is opposite to each other.
mass of proton $= 1.67 \times 10^{-27}Kg.$
mass of electron $= 9.1 \times 10^{-31}Kg.$
So that Magnitudes of their acceleration will be unequal.

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