Current Electricity Charging Discharging Of Capacitors Question 660
Question: A network of twelve resistances each of resistance R form a square of squares as shown in the figure. The outer square is fitted in a metal ring of negligible resistance. Find the resistance between centre of the square and the ring.
Options:
A) R/4
B) R/2
C) 3R/8
D) R/12
Show Answer
Answer:
Correct Answer: C
Solution:
[c] 1, 2, 3, 4 are at same potential; 5, 6, 7, 8 are at same potential. $ R _{eq}=\frac{R}{4}+\frac{R}{8}=\frac{3R}{8} $
BETA
