Question

Which is more accurate galvanometer or ammeter?

Answer 1

An ammeter is generally more accurate than a galvanometer when measuring electric current, but this is because they serve different purposes.

1. Galvanometer:
   

   - A galvanometer is a sensitive device used to detect small currents, typically in the microampere (µA) or milliampere (mA) range.
   - It gives a qualitative or approximate reading of current, which means it’s good for detecting the presence of a current but not necessarily for precise measurement.
   - It can be calibrated or adapted (with the right scale or shunt resistors) to measure higher currents.

1. Ammeter:
   

   - An ammeter is designed specifically to measure the current in a circuit with greater accuracy. It has a wider range of currents it can measure (from microamperes to several amperes) with higher precision.
   - Ammeters are often calibrated and come with a scale or digital readout that provides exact current readings.

So, in summary:

1. A galvanometer is more of a sensitive detector for small currents, while an ammeter is more accurate for precise current measurement, especially at higher levels.
   

  
If you're measuring current in an everyday electrical circuit, an ammeter would be the better tool for accurate readings!