What is a pure resistance circuit and how to distinguish it? 1

A pure resistance circuit refers to a circuit that only contains resistive elements and does not include inductors, capacitors, or any form of energy storage components. In this circuit, the relationship between current and voltage directly follows Ohm's law, which states that the current intensity (I) is the ratio of voltage (V) to resistance (R) (I=V/R). The characteristic of this circuit is that the phase of current and voltage always remains consistent, that is, they reach their maximum and minimum values at the same time.diode

To distinguish pure resistance circuits, we can start from the following aspects:

1. Component type

Check all components in the circuit. If a circuit only contains resistors (including fixed resistors, variable resistors, etc.) and no inductors, capacitors, or semiconductor devices (such as diodes, ADV7604BBCZ-5 transistors, etc.), then it is a pure resistor circuit.diode