In this article, you will learn detailed about the topic of Resistance vs impedance. Each term of resistance and impedance will be discussed and differentiated through this article.

### Definition

#### What is resistance

The resistance is defined as the **opposition offered** to the **flow of current** in an electrical or electronic circuit is known as resistance. it’s occurring in **Dc current**. The resistance will remain constant at any range of frequency.

#### What is impedance

The **opposition to the flow** of current is in an **Ac circuit**, it is happening due to the current passage through an inductor, capacitor, and resistor. The impedance will be change according to the Frequency of the current.

### Difference between resistance and impedance

#### Table of difference between resistance and impedance

BASIS | RESISTANCE | IMPEDANCE |

Defenition | opposition offered to the flow of current inanelectrical or electronic circuit is knownas resistance | opposition to the flow of current is in an Ac circuit, it is happening due to the currentpassage through an inductor, capacitor, and resistor |

Elemnts | Is a contribution of the resistive elements. | It is the contribution of resistive elements and reactance. |

Circuit | Mostly occure in Dc circuit | Most occure in Ac current |

Frequency | The resistance will be constant at any at any frequency. | The impedance will be changing according to the frequency. |

Phase angle | Resistance not having phase angle. | impedance having phase angle. |

Values | Resistance is simple value. | Impedance is complex and contain real and imaginary values. |

Equation | R = V/I |

### Method of calculation

#### Resistance calculation

#### Calculation of impedance

### The various difference between impedance and resistance in detailed

- Resistance is the opposition offered to the flow of current in Dc circuit. And the impedance is the opposition of flow of current in an Ac circuit.
- The resistance is denoted by the symbol of
**R**. Impedance is denoted by the symbol of**Z** - The resistance is only contributing to the resistive elements. But the impedance is contributing resistive and reactive elements in a circuit.
- The impedance having both phase angle and magnitude, but the resistance only having magnitudes.

Conclusion: resistance and impedance are relative words. which change according to the input voltage ( Dc or Ac ).

These both are relating to the restriction of the flow of current in a circuit.

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