Question

The potential difference applied to an x-ray tube 5kv and the current through it is 3.2nA.Then the number of electrons striking the target per second is:

Answer 1

Given, the current through an X-ray tube is I = 3.2 mA = 3.2 * 10^-3 A

I = total charges / time = ne/t

For t = 1 s, n = I / e = 3.2 * 10^-3 A / 1.6 * 10^-19 C

Thus, n = 2 * 10^16 electrons will strike the target per sec.

Answer 2

Explanation:

so the ans is 2×10^16

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