What characterizes a flexible cable?

A flexible cable is specifically designed to allow for movement, which makes it suitable for various applications where bending, twisting, or flexing is required. This characteristic is essential in environments where cables are subject to constant motion, such as in portable equipment or installations where flexibility is necessary for operation.

Cables that are flexible often utilize finer stranded conductors, which enable them to bend easily without breaking. This flexibility contrasts with rigid cables, which may break or become damaged if subjected to movement.

The other options do not correctly describe the nature of a flexible cable. Rigid cables are not capable of movement, outdoor-specific cables have features that might be resistant to environmental factors but can be rigid or flexible, and high-voltage cables can also be flexible or rigid depending on their design and intended use. Therefore, the definitive characteristic of a flexible cable is its ability to allow movement, making it a suitable choice for dynamic applications.