What is the difference between Ammeter and Voltmeter?

The significant difference between the ammeter and the voltmeter is that the ammeter measures the flow of current, whereas the voltmeter measures the emf or voltage across any two points of the electrical circuit. Resistance for ammeter is low.

The resistance for voltmeter is high. An ammeter is linked in series with the circuit. A voltmeter is connected with the parallel of the circuit. Accuracy with ammeter is increased. The efficiency with a voltmeter is decreased. The evolution of the range is not possible with an ammeter, but with voltmeter it is possible.