Physics

Problem

The potential difference applied to an X-ray tube is

5\text{kV}

and the current through it is

3.2\text{mA}

. Then the number of electrons striking the target per second is (a)

2 \times 10^{16}

(b)

5 \times 10^6

(c)

1 \times 10^{17}

(d)

4 \times 10^{15}