(1) InductorThe inductor (see Figure 1 and Figure 2) is an electronic component composed of a wire coil. When current passes through …

# Category: Electrical measurement and Ohm’s law

Talk about electrical measurement and Ohm’s law,introduce concepts such as current, voltage, resistance, and power

## Principles and application knowledge of capacitors

A capacitor is an electronic component with special properties. It can first “store” electrons, and then release them into the circuit to …

## Basic knowledge of resistors

All electrical circuits have resistance. There is resistance to “resist” current in conductors, loads, and other components. There is an electronic component …

## How to calculate the power of the power system?

The unit of measurement for electrical power is watts (W). Power reflects the rate at which the circuit consumes energy or the …

## Diagnosis of fault circuit in electrical system

Technicians and electricians often need to troubleshoot faulty systems. Two common faults are open circuit and short circuit. Ammeters, voltmeters and ohmmeters …

## How to choose the range and Ohm’s law for the meter?

â‘ Select the range of the instrumentWhen using an analog voltmeter or analog ammeter, the most accurate reading should be near the middle …

## What are ohms and ohmmeters?

In a circuit, the resistance to current is the resistance (R). The unit of measurement of resistance is ohm, which is represented …

## What is a power supply, voltage and voltmeter?

â‘ PowerThere are many kinds of commonly used power supplies, here are 6 kinds:(1) A battery is a direct current (DC) power source …

## Circuit principle of renewable energy power system

In order for the power to work, there must be a completely closed circuit, so that the current flows from the power …

## What is the basic concept of electric current?

Electric current is defined as electron flow. Coulomb is a unit of measurement of electron flow. Now suppose that the observer can …