Input Impedance in Electronics Formulas

Input Impedance is the opposition to current flow into an electrical circuit when a voltage is applied to its input terminals. And is denoted by Z_in. Input Impedance is usually measured using the Ohm for Electric Resistance. Note that the value of Input Impedance is always positive.

Formulas to find Input Impedance in Electronics

fxInput Impedance of Low Noise AmplifierGo

Electronics formulas that make use of Input Impedance

fxReturn Loss of Low-Noise AmplifierGo

fxLoad Impedance of Low Noise AmplifierGo

List of variables in Electronics formulas

fx Transconductance Go

fx Feedback Factor Go

fx Load Impedance Go

FAQ

What is the Input Impedance?

Input Impedance is the opposition to current flow into an electrical circuit when a voltage is applied to its input terminals. Input Impedance is usually measured using the Ohm for Electric Resistance. Note that the value of Input Impedance is always positive.

Can the Input Impedance be negative?

No, the Input Impedance, measured in Electric Resistance cannot be negative.

What unit is used to measure Input Impedance?

Input Impedance is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Input Impedance can be measured.

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