If a doubly-ionized oxygen atom is accelerated from rest by going through a potential difference of 10 V,what will be the change in its kinetic energy?
A) 10 eV
B) 40 eV
C) 20 eV
D) none of the above

Question

Quizplus · Accepted Answer

The change in kinetic energy of a charged particle accelerated through a potential difference can be calculated using the formula ΔK = qΔV, where q is the charge of the particle and ΔV is the potential difference. For a doubly-ionized oxygen atom, q = +2e, where e is the elementary charge. Thus, ΔK = 2e * 10 V = 20 eV. Therefore, the correct answer is (C) 20 eV.

If a Doubly-Ionized Oxygen Atom Is Accelerated from Rest by Going