Question

A proton and a deuteron are subjected to same electric field. If the force acting on the proton is $3.2\times {10}^{-16}$ N, then the force acting on the deuteron is

• A. $3.2\times {10}^{-16}N$
• B. $1.6\times {10}^{-16}N$
• C. $6.4\times {10}^{-16}N$
• D. $9.6\times {10}^{-16}N$

Answer 1

The correct option is A $3.2\times {10}^{-16}N$

Force in electric field
F = qE
so, force is dependent on charge in same electric field.
As the charge of proton and deuteron is same force will same in same electric field.
So, force on deuteron = force on proton
$=3.2\ast {10}^{-16}N$