How will you convert a moving coil galvanometer into an ammeter?
Question: How will you convert a moving coil galvanometer into an ammeter?
To convert a moving coil galvanometer into an ammeter, you need to connect a low resistance (called a shunt) in parallel to the galvanometer. This will allow most of the current to bypass the galvanometer and increase its range. The formula for the shunt resistance is:
$$S=\frac{I_g.G}{I-I_g}$$
where $I_g$ is the current for full-scale deflection, $G$ is the resistance of the galvanometer, and $I$ is the desired range of the ammeter.
You can also use a wire of suitable length and diameter as a shunt, and connect it to the terminals of the galvanometer.
If you want to verify the accuracy of your converted ammeter, you can compare its readings with a standard ammeter of the same range.
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