Consider a five-pointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent resistance in Ohms between the points A and B.

Details and assumptions
Note: Points ABCDE are labeled for easy reference if you need to use some combination of them in a solution.

Where is the picture?

cant post :(

answer is 7

To find the equivalent resistance between points A and B in the given star configuration of resistors, we can follow these steps:

1. Label each resistor for easier reference. Let's assume the resistors are labeled as follows:

R₁ - Top resistor
R₂ - Upper left resistor
R₃ - Upper right resistor
R₄ - Lower left resistor
R₅ - Lower right resistor

2. Identify the resistors that directly connect points A and B. In this case, R₁, R₂, and R₃ connect A and B.

3. Calculate the total resistance between points A and B as follows:

1/Rtotal = 1/R₁ + 1/R₂ + 1/R₃

Rtotal = 1 / (1/R₁ + 1/R₂ + 1/R₃)

4. Since each resistor has the same resistance, R = 6 Ω, we can substitute R for each resistor:

Rtotal = 1 / (1/6 + 1/6 + 1/6)

5. Simplify the equation:

Rtotal = 1 / (3/6)

Rtotal = 1 / (1/2)

Rtotal = 2 Ω

Therefore, the equivalent resistance between points A and B is 2 Ω.