An ammeter is a device used to measure electric current in a circuit. It works by connecting in series with the circuit, allowing the current to flow through it and measuring the amount of current passing through.
A voltmeter is a device used to measure voltage in a circuit. It works by connecting in parallel with the circuit, allowing the voltage to pass through it and measuring the difference in potential between two points.
An ammeter measures current, while a voltmeter measures voltage. Additionally, an ammeter is connected in series with the circuit, while a voltmeter is connected in parallel.
No, an ammeter and voltmeter cannot be used interchangeably. Each device is designed to measure a specific property of an electric circuit and has a different method of connection.
The right ammeter or voltmeter for your circuit depends on the range of current or voltage you expect to measure. Make sure to select a device with a suitable range and accuracy for your specific circuit.