Undersea cable facts for kids

Kids Encyclopedia Facts

An Undersea cable or Submarine communications cable is a cable that is laid in the sea or in waterways. Usually such cables either carry electricity or they are used for telecommunication. Cables longer than about 70 kilometres (43 mi) use direct current, because the loss is too big with alternating current. Such cables are also built in a very rugged way.

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Undersea cable Facts for Kids. Kiddle Encyclopedia.