In this post, I am sharing a list of basic electrical laws and theorems. Listing out these laws and theorems will be helpful for the electrical students.

All these different laws and theorems belong to electrical and electronics studies.

Before this article, I have explained the concept of an electrical circuit. They are used to solve the electrical network.

To solve these electrical circuits, you also need to apply multiple Electrical Laws and Theorems so that you can calculate the required values for various parameters.

Some laws are applicable to the AC and DC system.

Let’s see the most important electrical Laws, theorems and rules, one-by-one.

Table of Contents

#### What are the basic Laws of Electrical Engineering?

Here are listing the most important top 13 electrical and electronics laws.

**1. Ohm’s Law**

Learn here detail, electric ohm’s law

Here is a simple calculator to calculate Current from Resistance and Voltage using Ohm’s law.

**2.Electric and Magnetic Circuits Kirchhoff Law**

There are two types of Kirchhoff’s Law.

- Kirchhoff Current Law
- Kirchhoff Voltage Law

Learn more detail about Kirchhoff’s law. I have explained with applications.

**3. Joule’s Law of Electrical Heating Effect**

- First Law of Joule
- Second Law of Joule

**4. Newton Law of Motions (Physics laws)**

- First Law of Newton
- Second Law of Newton
- Third Law of Newton

**Note:** These are Physics laws and also useful in Electrical.

**5. Electrostatic (Coloumb) Law**

- First Law of Electrostatic
- Second Law or Coloumb Law of Electrostatic

**6. Faraday’s Law Of Electromagnetic Induction**

- First Law of Faraday
- Second Law Faraday
- Third Law or Lenz’s Law of Faraday

**7. Biot Savart Law for Electric and Magnetic field**

**8. Ampere’s Circuital Law**

**9. Gauss’s Law**

**10. Lenz’s Law**

**11. Curie’s Law**

**12. Hopkinson’s Law**

**13. Wiedemann–Franz law**

These list of electrical laws are applicable to both electrical and magnetic circuit.

#### Electrical and Electronic Network Theorems

In the electrical and electronic circuit, theorems help to simplify and to analyze the network.

Mostly these theorems are useful for the DC sources.

Here is the list of 9 theorems.

**Superposition Theorem****Thevenin Theorem****Norton Theorem****Millman’s Theorem****Reciprocity Theorem****Compensation Theorem****Maximum power transfer Theorem****Star-Delta transformation Theorem****Delta-Star transformation Theorem**

**Electrical Machines Rule**

The most important rule in electrical machines study is Fleming’s rule. Mainly, this rule is used for motors and generators.

Following are the two Fleming’s rule for Machine:

**Fleming’s Right-Hand Rule****Fleming’s Left-Hand Rule**

The first right-hand rule is applicable to the generators. And the second left-hand rule is applicable to the motors.

This article is all about listing different basic electrical laws and theorems. I will explain each law and theorem in my upcoming articles.

**Ready for online test:**

If you are ready to give the online quiz, you can directly join the Electrical Laws Quiz.

**Thanks for reading!**

I have completed master in Electrical Power System. I work and write technical tutorials on the PLC, MATLAB programming, and Electrical on DipsLab.com portal.

Sharing my knowledge on this blog makes me happy. And sometimes I delve in Python programming.

Hi Dipali Ji,

Please, can you explain in more details about below theorems?

Star-Delta transformation Theorem

Delta-Star transformation Theorem

Thanks.

Hello, Muqtar

Firstly thanks a lot for suggesting to me.

Sure, I will explain these theorems with the details in my upcoming article.

wonderful thanks alot..

You’re most welcome, Mohamed!

Really helpful for me.

Thank you, Thangam.

Hello Dipali,

Please share an article about on dimension formulas of related to Electrical Engineering.

Hie Rajnish,

Kindly, what point do you want me clear? Please, elaborate.

Thank you for sharing your knowledge. If you share the explanation of each theorems, it would be grateful.

Hi Kris,

Thanks for suggesting. Soon, I will explain each electrical theorem one by one.

Hello

Why didn’t you add Lenz’s law?

Thanks, Ramu for sharing this law. I added this law.

Thank you Dipali.

You’re welcome 🙂

Hi Dipali,

Please, can you explain in detail?

Hey, Akshay

I have already covered two laws out of this list. Surely, I will explain all these laws and theorems one by one.

Hi Dipali,

Please, can you explain Wiedeman Franz law in detail?

Thanks for the suggestion. Yes, I will try to share soon.

Hi, Dipali Ma’am can you teach me all the law’s and theorem’s .

I’ll be very thankful to you.

Thanks for reaching, Rahul. I have explained basics electrical laws (like Ohm’s Law and Kirchhoff’s Law). Soon, I will try to cover all these laws and theorems.

Hi, Thanks for the list of laws

This is inspiring…keep it up

Thanks, Emeka 🙂

Very usefull

Thanks

You’re welcome.

Hi Ms. Dipali, I’m so happy that I’ve found your website, so helpful.

Thanks, Rania for reaching out to the DipsLab portal and finding it helpful.