Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping
nitin singh Grade: 12

what is mean by electric constant?
electric constant=1/(magnetic constant * speed of light)

please explain this equation.

7 years ago

Answers : (2)

Rathod Shankar AskiitiansExpert-IITB
69 Points

The electric constant0) is a constant.

it appears Coulomb's law can be given as:

 F = \frac{1}{4 \pi \varepsilon_0} \ \frac{|q| |Q|}{r^2}

\varepsilon_0 = \frac{1}{\mu_0 c^2}

here μ0 = 4π × 10−7 N/A2

\varepsilon_0 = \frac{10^7}{4\pi\,c^2} =  8.854\;187\;817... 10^{-12}
ε0=The permittivity of empty space
   = equal to 1 in centimeter-gram-second electrostatic units and to 107/4πc2 farads permeter         = 8.854 × 10-12 farad per meter 

Now you can win exciting gifts by answering the questions on
Discussion Forum. So help discuss any query on askiitians forum and
become an Elite Expert League askiitian.
Now you score 5+15 POINTS by uploading your Pic and Downloading the
Askiitians Toolbar : Click here to download the toolbar..

7 years ago
harini desiraju
31 Points

the terms electric constant and magnetic constant are introduced while defining coloumb's inverse square law.These are used as proportionality constants in the fields of electricity and magnetism respectively.I am not aware of the derivation,but can tell u the relation between 'c' and these constants. light is an electromagnetic wave.So,its speed should describe the nature of both electric and magnetic waves. Thus we can accept this relation.(c2=1/electric const. * magnetic const.)

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
  • Kinematics & Rotational Motion
  • OFFERED PRICE: Rs. 636
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!! Click Here for details