three resistors are in triangle. so first two resistors are in series 2+2=4ohms. third resistance are in parellel with this 4ohms. so Reff=4*2/4+2=4/3. ans is 4/3
three resistors are in triangle. so first two resistors are in series 2+2=4ohms. third resistance are in parellel with this 4ohms. so Reff=4*2/4+2=4/3. ans is 4/3
three resistors are in triangle. so first two resistors are in series 2+2=4ohms. third resistance are in parellel with this 4ohms. so Reff=4*2/4+2=4/3. ans is 4/3