# Kirchhoff’s law, what is a node?, what is a circuit? What is loop? when this rule

Kirchhoff’s Laws in English:- By this law in any complex circuits **current or voltage** can be easily detected. Current or voltage can also be determined by Ohm’s law, but Ohm’s law is a bit difficult to use.

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### Kirchhoff’s Law

These rules are used a lot in the field of engineering. He discovered two laws. Which are explained below, which are as follows-

#### 1. First Rule

this rule **principle of conservation of charge **based on. This **junction rule or junction rule** also say.

He has described the law of the stream in the first rule. in a nutshell **KCL (kirchhoff current law)**) They say. Which is defined as follows-

Also Read: What are the types of circuit breakers? , Circuit Breaker kitne prakar ke hot hai?

“The sum of the currents coming through a junction or point in an electric circuit or loop is equal to the sum of the currents coming out of it.”

In other words, “the algebraic sum of all the electric currents meeting at any point or point in an electric circuit or loop is zero.”

Currents coming towards a junction or point are considered positive and currents going away from the junction or point are considered negative.

Also Read: What is Fleming's left hand rule? and its uses

#### 2. Second Rule

It is also called Kirchhoff’s loop law or voltage law or Mash’s law. It is based on the law of conservation of energy. ,kirchhoff rule,

In the second rule **law of potential difference **has been described. in a nutshell **emf** it is said. Which is defined as follows-

“The algebraic sum of the electromotive force in a closed circuit or loop is equal to the algebraic sum of the potential differences across the resistors of that circuit.”

Also Read: What are RLC series circuits? (What is RLC series circuit in hindi)

In other words:- “The algebraic sum of all the potential differences in a loop or closed circuit is zero.”

### Important point:-

- The currents going towards the junction are written as positive and the currents going through the junction are written as negative.

### What is a Loop?

A closed circuit is called a loop. In which the nodes related to the circuit are not more than one.

### What is Circuit?

A closed loop is called a circuit, in which current flows through resistors, conductors.

Also Read: What is circuit breaker rating? , Circuit Breaker Ratings kya hai?

### What is a Node?

### Who gave the law of current and voltage?

Scientist Gustav Robert Kirchhoff

### When were these rules discovered?

### Where was scientist Gustav Robert Kirchhoff from?

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