A discharge tube is connected to a power supply of 200 V . Calculate the effective resistance of the tube if the number of protons drifting through a section per second is `1.5 xx10^(18)` and the number of electrons drifting in opposite direction through auother cross section per second is `2.0 xx10^(18)`.

Explanation

To solve the problem, we need to calculate the effective resistance of the discharge tube using the given information about the number of protons and electrons drifting through a section per second and the voltage applied across the tube.

### Step-by-Step Solution

**Step 1: Calculate the total charge flowing per second.**

The total charge \( Q \) flowing per second can be calculated by considering both the protons and electrons. The charge of each proton and electron is \( e = 1.6 \times 10^{-19} \) coulombs.

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