Question

In the given circuit all resistances are of value $R$ ohm each. The equivalent resistance between $A$ and $B$ is:

• A. $2R$
• B. $\frac{5R}{2}$
• C. $\frac{5R}{3}$
• D. $3R$

Answer 1

The correct option is A $2R$

Point 1, 2, 3 and 4 are same potential (shot circuited),hence equivalent resistance becomes

$R_{Eq}=R+R=2R$