question_answer

A potential difference of V volts is applied on two parallel electrodes separated by a distance of\[4.0\times {{10}^{-2}}m\]. The electrons of very low energy are injected into the region between the electrodes which contains argon at low pressure. The average distance the electrons travel between collisions with argon atoms is\[8\times {{10}^{-5}}m\]. The ionization energy of argon atom is\[16eV\]. Estimate the minimum value of V (in kV) such that the electrons will cause ionization in argon atoms by collision.

Answer:

8.00