Introducing What is an Electrical Circuit Actually - Elucidate Techno

Definitions

• A complete and closed path around which a circulating electric current can flow. Source 1
• A path for an electric current to flow through. Source 2
• The complete path of an electric current usually including the source of electric energy. Source 3

Introducing What is an Electrical Circuit Actually

What is an Electrical Circuit - Elucidate Techno

An electrical circuit is a path where electricity flows through a complete loop and releases to the ground. Different electrical components are connected to the circuit. The combination of these components in the circuit has been designed to get a particular output. 

Electrical components mean resistor, capacitor, source, inductor etc.

The necessity of an electrical circuit

"What is an electrical circuit serves?" to answer this question easily,
Suppose, we want to make a device that can charge up our Android or iPhone.  But, our home power supply generates 220V. So, if we simply connect the smart phone's battery to the power supply through a copper wire then the battery will be damaged. Commercial basic battery charger generates a 5V and 0.2 amp. So overall 2.5W power. 

To Get It what should we do?

We should design an electrical circuit with components (resistor, capacitor, diode, etc) that can generate a 5V and 0.5 amp. That's why the circuit is necessary. 

Here's an example of a very simple electrical circuit

What is an Electrical Circuit - Example

In this electrical circuit, A battery as a source is connected to three resistors. The resistors are connected in parallel to each other. And at the output, a load is connected. And obviously, the full circuit is connected to the ground. 

In this circuit, the battery generates a voltage, so a current will be generated and flow through the circuit. After passing through all of the resistors (r1,r2,r3), a current will be reduced to a specific level so that it can operate the load properly. After the operation, the remaining current will be released to the ground to complete the electrical circuit.

How to measure resistance with a multimeter