Question

Calculate the force between two alpha particles kept at a distance of 0.02mm in air.

Answer 1

alpha particles hav +2e charge.. force= kq1q2/r

Answer 2

Answer:

1.44 × (10^-18)

Explanation:

for an alpha particle charge = 2 × charge of an electron

distance between them is 0.002mm = 2×10∧-5 m

we know the formula F=(1/4πε ×q1×q2)/r²

thus  

 F= {(9×10∧9)×(2²)×(1.6×10∧-19)²}÷{(2×10∧-5)²}

 F=1.44 × (10^-18)