# Impedance

In electronics, impedance is the measure of the opposition that a circuit offers to the flow of current. Impedance is represented using the symbol Z and is measured in ohms. It is important to note that impedance is a complex quantity, which means that it has both a real and imaginary component. The real component is known as the resistive component, while the imaginary component is known as the reactive component. The total impedance of a circuit is the vector sum of the resistive and reactive components. What is impedance and its unit? Impedance is a measure of the opposition that a circuit offers to the flow of an alternating current. The unit of impedance is the ohm.

#### What is the purpose of impedance?

The purpose of impedance is to measure the opposition to the flow of an alternating current (AC) in a circuit. Impedance is measured in ohms and is represented by the symbol Z. It is made up of two components: resistance and reactance. Resistance is the opposition to the flow of current that is caused by the collisions of the electrons with the atoms of the conductor. Reactance is the opposition to the flow of current that is caused by the inductance or capacitance in the circuit.

##### What is difference between resistance and impedance?

The difference between resistance and impedance is that impedance is a measure of the total opposition to current flow, while resistance is a measure of the opposition to current flow due to the collision of electrons with the atoms of the material through which they are flowing. Impedance includes both resistance and reactance, while resistance does not.

#### What does impedance mean in simple terms?

Impedance is a measure of electrical resistance. It is measured in ohms and is represented by the symbol Z. Impedance is the opposition that a circuit offers to the flow of an alternating current. It is composed of two elements: resistance and reactance. Resistance is the part of impedance that opposes the flow of current due to the collisions of the electrons with the atoms of the conductor. Reactance is the part of impedance that opposes the flow of current due to the inductance or capacitance of the circuit.

What's the difference between impedance and reactance? The difference between impedance and reactance is that impedance is the total opposition to current flow in a circuit, while reactance is the opposition to current flow due to inductance or capacitance in a circuit. Impedance is a measure of the overall Opposition to current flow in a circuit, while reactance is a measure of the Opposition to current flow due to inductance or capacitance in a circuit.