Question

power is a measure of the​

Answer 1

Answer:

WATT

Explanation:

the unit of power is the watt, equal to one joule per second

Answer 2

Explanation:

The measuring of the power consumption of a device or the dissipated power of a component is often a source of errors. Very decisive for the result is if the measurement is done on a direct or alternating current and how the voltage and current shapes look. Also the type of load, which measurement equipment is used and how the measurement results are processed will dictate the accuracy.

When the power is measured it's necessarily that both the voltage and current are measured at the same time, and that the relationship between these two is taken into account. The ways the voltage and current are measured have a great influence on the accuracy. See the articles Voltage and Current for more information about correct measuring these parameters.

Real power (P)

The real power is the only correct parameter for measuring power. The real power is what is actual converted in work or heat. The real powers of multiple measurements may always be added together. The real power P is calculated by averaging the products of the instantaneous values of voltage v and current i: