A wire of resistance 8R is bent in the form of a circle. What is the effective resistance between the ends of a diameter AB?

Explanation

To find the effective resistance between the ends of a diameter AB of a wire bent in the form of a circle with a total resistance of 8R, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Configuration**:
- The wire is bent into a circle, and we need to find the resistance between two points (A and B) that are at the ends of a diameter.

2. **Divide the Circle**:
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