Mammoth Memory

The difference between an ammeter and galvanometer

Before we can discuss Flemings right hand rule we need to understand the difference between an ammeter and a galvanometer.

 

Ammeter

An ammeter is a measuring instrument used to measure the magnitude of the current in a circuit. Electric currents are measured in amperes hence the name ammeter.

Ammeter

 

Galvanometer

A glavanometer measures both the direction of the current and its magnitude.

Galvanometer showing positive current flow

Galvanometer shows 1.5 amps positive.

 

Galvanometer showing negative current flow

Galvanometer shows 1.5 amps negative.

More Info