Kuormitusvaikutus
Kuormitusvaikutus refers to the phenomenon in electrical engineering and physics where the impedance of a measuring instrument or circuit affects the behavior of the circuit being measured. When a device is connected to measure a quantity, such as voltage or current, it draws some power or current from the circuit. This drawing of power alters the original conditions of the circuit, leading to a measurement that may not accurately reflect the circuit's state without the measuring device present.
The magnitude of the kuormitusvaikutus depends on the relative impedances of the source circuit and the measuring
For example, when measuring voltage with a voltmeter, the voltmeter has a finite internal resistance. This resistance