Definitions for impedance

• Definition
• Anagrams (411)

impedance im·ped·ance

Spelling: [im-peed-ns]

IPA: /ɪmˈpid ns/

Impedance is a 9 letter English word. It's valid Scrabble word worth 16 points. It's valid Words with friends word worth 20 points.

You can make 411 anagrams from letters in impedance (acdeeimnp).

Definitions for impedance

noun

1. Electricity. the total opposition to alternating current by an electric circuit, equal to the square root of the sum of the squares of the resistance and reactance of the circuit and usually expressed in ohms. Symbol: Z.
2. Also called mechanical impedance. Physics. the ratio of the force on a system undergoing simple harmonic motion to the velocity of the particles in the system.
3. something that impedes; an obstacle or hindrance.

Origin of impedance

1886; impede + -ance; term introduced by O. Heaviside

Examples for impedance

In order to further increase the impedance, the cores are made long and heavy.

The impedance of the coil I is changed by moving its adjustable core.

impedance, however, does not equal the sum of resistance and reactance.

What is the impedance if the voltage of the line is 115 volts?

impedance depends chiefly upon the frequency of alternation.

These four impedance coils are wound on separate cores and do not have any inductive relation whatsoever with each other.

The usual diagrammatic symbol for an impedance coil is shown in Fig. 106.

The symbol of Fig. 104 is a good one for the toroidal type of impedance coil.

An important factor in the design of impedance coils is the grade of iron used in the magnetic circuit.

The impedance of its secondary will be a quarter of this or 3,000 ohms.