Question

an electron and proton are kept same electric field will their experience same force and same accellaration

Answer 1

Yes, but in opposite direction because they have same charge but with different sign.

Answer 2

The answer is Yes. This is because electrons and protons have the same charge , i.e. 1.602 * 10⁻¹⁹ C. However, electrons have negative charge whereas proton has positive charge. So they would both experience the same force and acceleration but in opposite directions.