1. Tardigrade
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  3. Physics
  4. In a discharge tube when 200 V potential difference is applied 6.25 × 1018 electrons move from cathode to anode and 3.125 × 1018 singly charged positive ions move from anode to cathode in one second. Then the power of tube (in W) is.

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Q. In a discharge tube when $200\, V$ potential difference is applied $6.25 \times 10^{18}$ electrons move from cathode to anode and $3.125 \times 10^{18}$ singly charged positive ions move from anode to cathode in one second. Then the power of tube (in $W$) is______.

Dual Nature of Radiation and Matter

Solution:

We use $P=V_{q}=200\left(6.25 \times 10^{18}+3.125 \times 10^{18}\right) \times 1.6 \times 10^{-19}$
$=300$ watt