Tulojänniteimpedanssi
Tulojänniteimpedanssi, often referred to as input impedance, is a fundamental concept in electronics, particularly relevant when analyzing circuits and signal transmission. It represents the opposition that a circuit presents to the flow of alternating current (AC) when a voltage is applied to its input terminals. Impedance is a more general term than resistance, as it accounts for both resistance and reactance, which arises from capacitors and inductors within the circuit.
In essence, tulojänniteimpedanssi describes how a circuit "reacts" electrically to an incoming voltage signal. A high
The unit of impedance is the ohm (Ω), the same as resistance. It is typically represented as a