Impedance reduces to resistance in circuits carrying steady direct current. The magnitude of the impedance Z of a circuit is equal to the maximum value of the potential difference, or voltage, V (volts) across the circuit, divided by the maximum value of the current I (amperes) through the circuit, or simply Z = V/I.

What are impedance give an example?

Impedance, denoted Z, is an expression of the opposition that an electronic component, circuit, or system offers to alternating and/or direct electric current. ... Examples of materials with low resistance, known as electrical conductors, include copper, silver, and gold.

What is impedance simple explanation?

The definition of an impedance is any obstruction, or the measure of the opposition of an electric current to the energy flow when voltage is applied. ... An example of impedance is a line of resistance within an electrical current.