What Is The Value Of Mu Naught? - Definition And Units - Byju's

Mu naught or µ0 is the permeability constant and is synonymous to the permeability of free space or as magnetic constant. Mu naught value is the measure of the amount of resistance offered against the formation of the magnetic field in vacuum. It is often misspelt as mu not instead of mu naught.

Value Of Mu Naught

The value of mu naught(µ0) or the value of absolute permeability of free space had the exact defined value until 20 May 2019.

Until 20 May 2019,

• mu naught value: µ0 = 4π × 10-7 H/m
• approximated to µ0 = 12.57 × 10-7 H/m

However, on 20 May 2019 a revision to the SI system took place, making the vacuum permeability no longer a constant but rather a value that needs to be determined experimentally. A recently measured value of mu naught in the system is 4π × 1.00000000082(20)×10-7 H⋅m-1

Mu Naught Unit

The units in physics are the different scales to measure an entity. The value of mu naught is measured using henries per metre which is equivalent to newton(kg.m/s2) per ampere squared(N.A-2).

Hope you got to know the Mu naught value along with Mu naught unit in SI in physics.

Physics Related Topics:

Epsilon Naught Value

Value Of Planck’s Constant

Value Of Gravitational Constant

Value Of g On Moon

Stay tuned with BYJU’S for more such interesting articles. Also, register to “BYJU’S-The Learning App” for loads of interactive, engaging physics-related videos and an unlimited academic assist.

Test your knowledge on Mu Naught Value Q5

Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin!

Select the correct answer and click on the “Finish” buttonCheck your score and answers at the end of the quiz

Start Quiz

Congrats!

Visit BYJU’S for all Physics related queries and study materials

Your result is as below

0 out of 0 arewrong 0 out of 0 are correct 0 out of 0 are Unattempted View Quiz Answers and Analysis X Login To View Results Mobile Number* Send OTP Did not receive OTP?

Request OTP on Voice Call

Login To View Results Name* Email ID* Grade* Grade 1 2 3 4 5 6 7 8 9 10 11 12 City* View Result

Comments

Leave a Comment Cancel reply

Your Mobile number and Email id will not be published. Required fields are marked *

* Send OTP Did not receive OTP?

Request OTP on Voice Call

* * Post My Comment

Register with BYJU'S & Download Free PDFs

* Send OTP * * * * * Grade Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 Class 9 Class 10 Class 11 Class 12 IAS CAT Bank Exam GATE Download Now

Register with BYJU'S & Watch Live Videos

* Send OTP * * * * * Grade Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 Class 9 Class 10 Class 11 Class 12 IAS CAT Bank Exam GATE Watch Now