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
Menu
Grade:
        

Q.)


Three point charges, which initially are infinitely far apart are placed at the corners of an equilateral triangle with sides d. Two of the point charges are identical and have charge q. If zero net work is required to place the three charges at the corners of the triangle, what must be the value of the third charge be? 


 


Ans. -q/2

6 years ago

Answers : (3)

Chetan Mandayam Nayakar
312 Points
							

let k=4*pi*ε0

let third charge be Q

(1/k)((q2/d)+ (2Qq/d))=0

6 years ago
DHRUBA JYOTI ROY KARMAKAR
11 Points
							

let,the charge on third charge be Q...

so,calculate the energy of the third charge and equate it to zero

it will give you the charge of d third charge to be -q/2

6 years ago
Abhisek Roy
11 Points
							

thanks wellwisher

6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 276 off

COUPON CODE: SELF10


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 297 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

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