Question

. The resistance of all the wires between any two adjacent
dots is R. Then equivalent resistance between A and B as
shown in the figure is​

Answer 1

Answer:

thanks for giving free points

Answer 2

Here the equivalent resistance of each triangle is R

eq1

=

(R+R)+R

(R+R)R

=(2/3)R

Now reduce the side by connecting resistance in series as shown in figure.

Here, R

eq2

=(2/3)R+(2/3)R=(4/3)R

Now the circuit is a balanced Wheatstone bridge. So middle resistor R is not working.

Thus, R

AB

=

[(4/3)R+R]+[(4/3)R+R]

[(4/3)R+R][(4/3)R+R]

= 67r