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
abhishek kumar sharma Grade: 12
        


 


Q: As shown in Fig. an equilateral triangle has resistance of outermost sides as R each. Further there exists infinite no. of Equilateral triangles in it . Each arm of the triangle inside the outermost triangle has resistance R/2, and it continues to all inner triangles as..R/4,R/8..so on.Find the Equivalent resistance between Point A and B.

8 years ago

Answers : (2)

AskiitianExpert Pramod-IIT-R
47 Points
										At every point the resistors meet would be effectively increasing the resistance. It is because any current here would only be able to see the outer path due to the presence of infinite number of triangular mesh. The outer path consists of two resistors with resistance of R each. They are in series and thus, the resultant resistance would be R+R = 2R. This is the effective resistance for such a complicated mesh.
										
7 years ago
Anurag Kishore
37 Points
										

Hi


Let equivalent resistance be x


Circuit is as shown


Req = 2R(R+x)/(4R+3x)   ----------------------(1)


but we assumed Req = x  ----------------------(2)


So from 1 and 2


x = R(71/2 - 1)/3


 


This is the only way to solve these type of questions


1879_11071_untitled2.JPG

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete Physics Course - Class 12
  • OFFERED PRICE: Rs. 2,756
  • View Details
  • Complete Physics Course - Class 11
  • OFFERED PRICE: Rs. 2,968
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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