A voltmeter is a device used to measure the voltage or potential difference between two points in an electrical circuit.
Voltmeter cheat sheet for homework
Multimeter: A multimeter is a versatile device that combines the functions of multiple measuring instruments, including a voltmeter, ammeter, and ohmmeter.
Voltage refers to the electric potential difference between two points in an electrical circuit.
Circuit: A circuit is a closed loop through which electric current flows. It consists of various components connected by conductive wires.