A galvanometer of resistance `20Omega` is shunted by a `2Omega` resistor. What part of the main current flows through the galvanometer ?

Explanation

To solve the problem of finding the part of the main current that flows through the galvanometer when it is shunted by a resistor, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Resistances**:
- The resistance of the galvanometer (R_g) is 20 Ω.
- The resistance of the shunt resistor (R_s) is 2 Ω.

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