## What is an R-L-C circuit?

Circuits that contain both resistors, capacitors, and inductors are common, such as power supply filters, tuners in radios and televisions, and timer …

## What are active power, reactive power and apparent power?

In electrical research, there are three basic forms of power, namely: active power, reactive power and apparent power.Active power (P or PTRUE) …

## What is an R-L circuit?

The R-L circuit contains resistors and inductors, as shown in Figure 1. If the resistance is very small or equal to zero, …

## What is an R-C circuit?

The R-C circuit contains resistors and capacitors, as shown in Figure 1. The unit of capacitance (C) is farad. The units of …

## What is a capacitor in an AC circuit?

The capacitor has a charging process and a discharging process. In a DC circuit, a capacitor is charged and stored, and a …

## What are DC waveforms and AC waveforms?

The transformer is suitable for alternating current rather than direct current. Figure 1 shows the waveforms of direct current and alternating current. …

## What is the working principle of a transformer?

1. electromagnetic fieldIn order to understand the working principle of a transformer, it is necessary to understand the principle of electromagnetic induction: …

## Three-phase alternating current and alternating current advantages

①Three-phase alternating currentIn power transmission, the AC power output by the power station is high-voltage three-phase power. After the electricity is distributed …

## Parallel DC circuit parameters, constant current source and shunt circuit

1.The rules for calculating parallel circuit parametersThe rules for calculating parallel circuit parameters are summarized as follows:(1) The total current (IT) is …

## Basic knowledge of parallel circuit

Figure 1 shows a parallel circuit with three branches. Each current path is a branch. The current from the power supply is …