A galvanometer has a sensitivity of 60 division/ampere. When a shunt is used its sentivity becomes 10 divisions/ampere. What is the value of shunt used if the resistance of the galvanometer is `20Omega`?

Options

A. `2Omega`
B. `3Omega`
C. `4Omega`
D. `6Omega`

Explanation

To solve the problem, we will follow these steps:

### Step 1: Understand the relationship between sensitivity and current
The sensitivity of a galvanometer is defined as the number of divisions on the scale per unit current (in amperes). Initially, the sensitivity of the galvanometer is given as 60 divisions/ampere. When a shunt is used, the sensitivity changes to 10 divisions/ampere.

### Step 2: Set up the equations based on sensitivity
Let:
- \( I \) = total current through the circuit
...