Poor network quality may occur due to the following: Network congestion Routers or other network equipment are overloaded with too much traffic. Wireless LAN interference A large number of wireless devices are connected to the access points. Faulty LAN cabling or connection A cable is defective or becomes damaged.
1 Diamond is an excellent electrical insulator, Graphite is a good conductor of electricity. 2  Diamond is the ultimate abrasive, Graphite is a very good lubricant. 3  Diamond is usually transparent, Graphite is opaque.  Diamond crystallizes in the Isometric system and graphite crystallizes in the hexagonal system.
These two elements are the best conductors in the metalloid group. Carbon conducts electricity and is classified as a semi-metal when in the form of graphite. Although it conducts electricity and heat like a metal or metalloid, graphite is not used commercially as a conductor. Instead, its softness makes it an effective lubricant for engines and industrial machinery.