impedance (Meaning)
impedance (n)
a material's opposition to the flow of electric current; measured in ohms
impedance (n.)
The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2/fL, where f = frequency and L = self-inductance; for a circuit with capacity X = 1 / 2/fC, where C = capacity.
Synonyms & Antonyms of impedance
No Synonyms and anytonyms found
impedance Sentence Examples
- The electrical impedance of the circuit posed a significant challenge to the engineers.
- The loudspeaker's impedance must match the amplifier's output impedance for optimal performance.
- The mismatch between the input and output impedance caused a severe loss of power in the system.
- The impedance of the transmission line varies with frequency, requiring careful design to minimize signal distortion.
- The inclusion of an impedance matching transformer improved the efficiency of the antenna.
- The characteristic impedance of a coaxial cable is determined by its physical dimensions.
- The impedance of the human body is an important factor in medical devices.
- The load impedance affects the gain and stability of an amplifier circuit.
- The impedance of a crystal oscillator determines its frequency stability.
- The determination of the impedance of an unknown component is a fundamental task in electrical engineering.
FAQs About the word impedance
a material's opposition to the flow of electric current; measured in ohmsThe apparent resistance in an electric circuit to the flow of an alternating current, a
No synonyms found.
No antonyms found.
The electrical impedance of the circuit posed a significant challenge to the engineers.
The loudspeaker's impedance must match the amplifier's output impedance for optimal performance.
The mismatch between the input and output impedance caused a severe loss of power in the system.
The impedance of the transmission line varies with frequency, requiring careful design to minimize signal distortion.
