In the same figure, equivalent resistance between points A and D is

Options

A. `(R)/(4)`
B. `2R`
C. `R`
D. `(R)/(2)`

Answer

To find the equivalent resistance between points A and D, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Configuration**:
- We need to analyze the circuit configuration between points A and D. Assume that there are resistances connected in series and parallel.

2. **Label the Points**:
- Label the points in the circuit for clarity. Let's assume A, B, C, and D are the relevant points in the circuit.

3. **Determine the Resistance Values**:
- From the information provided, we assume that the resistance between points A and C is 2 ohms, and the resistance between points B and C is also 2 ohms.

4. **Combine Resistors in Series and Parallel**:
- If resistors are in series, their resistances add up. If they are in parallel, the equivalent resistance \( R_{eq} \) can be calculated using the formula:
\[ \frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \ldots \]
- For example, if there are two resistors of 2 ohms each in parallel, the equivalent resistance would be:
\[ R_{eq} = \frac{2 \times 2}{2 + 2} = 1 \text{ ohm} \]

5. **Calculate the Total Resistance**:
- Continue combining resistances until you find the total equivalent resistance between points A and D.

6. **Final Calculation**:
- After calculating the equivalent resistances step by step, you will arrive at the final equivalent resistance between points A and D.

### Conclusion:
- The equivalent resistance between points A and D can be found through careful analysis of the circuit, combining resistances in series and parallel as necessary.