#### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Click to Chat

1800-1023-196

+91 7353221155

CART 0

• 0
MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

# 2 point charges in air at a distance of 20cm from each other interact with a certain force. the distance from each other where these charges should be placed in oil of relative permutivity 5 to obtain the same force of interaction is?

Aman Bansal
592 Points
9 years ago

Dear Student,

the force of interaction between two ions, separated by a distance, r in a medium ofrelative permittivity εr is given by

$\mbox{force} = \frac {z_1z_2e^2}{4\pi \epsilon _0 \epsilon _r r^2}$

Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple  to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Aman Bansal
592 Points
9 years ago

Dear Student,

the force of interaction between two ions, separated by a distance, r in a medium ofrelative permittivity εr is given by

$\mbox{force} = \frac {z_1z_2e^2}{4\pi \epsilon _0 \epsilon _r r^2}$

Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple  to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

shubham sharda
361 Points
9 years ago

just  use the formula q1*q2/4∏ EoEr r^2