Question

A particle of mass \(3\,\text{g}\) and charge \(60\,\mu C\) is released from rest in a uniform electric field of intensity \(10^5\,\text{N C}^{-1}\). If the value of kinetic energy attained by the particle after moving through a distance of \(2\,\text{cm}\) is \(m \times 10^{-2}\,\text{J}\), then the value of \(m\) is:

• A. \(12\)
• B. \(6\)
• C. \(5\)
• D. \(4\)

Hint:

In a uniform electric field, work done is \(qEd\) which directly converts into kinetic energy. No need to use mass here.

Answer 1

The Correct Option is A