What electrical parameters does a multimeter measure?

A multimeter is a versatile instrument used primarily to measure various electrical parameters, most notably voltage, current, and resistance.

Voltage measurement allows users to assess the electrical potential difference between two points in a circuit, which is essential for understanding circuit performance and identifying issues. Current measurement helps to determine the flow of electric charge, which is critical for troubleshooting electrical systems. Resistance measurement permits evaluation of components and circuit paths to see how well they resist the flow of current, providing insight into component health and circuit integrity.

While other choices present parameters that may be related to electrical systems, they mix categories or include measurements that a standard multimeter does not typically cover. For example, pressure is not an electrical parameter, and while frequency and power can be measured, they typically require specific types of multimeters designed for those purposes rather than a general-use multimeter. Capacitance is not included in the correct choice as a fundamental measurement for all multimeters, although some advanced models may offer it. Thus, the selection emphasizing voltage, current, and resistance accurately reflects the primary functions of a standard multimeter.