A galvanometer coil has a resistance of `15Omega` and the meter shows full scale deflection for a current of `4mA`. How will you convert the meter into an ammeter of range 0 to 6A?

Explanation

To convert a galvanometer into an ammeter, we need to add a shunt resistor in parallel with the galvanometer. Here’s how to solve the problem step-by-step:

### Step 1: Identify the given values
- Resistance of the galvanometer (G) = 15 Ω
- Full scale deflection current of the galvanometer (i) = 4 mA = 4 × 10^(-3) A
- Maximum current for the ammeter (I) = 6 A

### Step 2: Use the formula for shunt resistance
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