A1: In practice, the USB specification limits the length of a cable between full speed devices to 5 meters (a little under 16 feet 5 inches). For a low speed device the limit is 3 meters (9 feet 10 inches). Q2: Why can't I use a cable longer than 3 or 5m?
Clouds form when moist, warm rising air cools and expands in the atmosphere. The water vapor in the air condenses to form tiny water droplets which are the basis of clouds.
What causes clouds. A cloud is defined as âa visible aggregate of minute droplets of water or particles of ice or a mixture of both floating in the free airâ. Each droplet has a diameter of about a hundredth of a millimetre and each cubic metre of air will contain 100 million droplets.