Question

A wire of resistance 10ohm is bent to form a circle. Calculate the resistance between two points

Answer 1

Answer:

Explanation:

2.5ohm

when the wire is made into a circle and when 2 points int he ends of the diameter are considered then the resistor willget split up into 2

resitors each of 5 ohms and these 2 resistors will be in \\ connection

i.e..

   Re=(1/5+1/5)^(-1)      which we will get in substiting the \\ resistence formula  

when we equate it we'll get 2.5 ohm

Answer 2

Answer:

a 10 ohm resistance when bent into the circle . the two points of diameter will change it into 2 resistances of 5 ohm each

hence total resistance b/w the

point

1/R = 1/R1 + 1/R2

= 1/5 + 1/5

1/R = 2 /5

so, R = 5/2

R = 2.5 ohm