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The Cold War period was widely understood as one of bipolarity with the USA and the USSR as the world's two superpowers, whereas the end of the Cold War led to unipolarity with the US as the world's sole superpower in the 1990s and 2000s. Scholars have debated how to characterize the current international system. [2] [3] [4]
This is a list of countries by electric energy consumption. China is the largest producer and consumer of electricity, representing 55% of consumption in Asia and 31% of the world in 2023. China is the largest producer and consumer of electricity, representing 55% of consumption in Asia and 31% of the world in 2023.
However, current in metal conductors is generally [a] due to the flow of electrons. Because electrons carry a negative charge, they move in the direction opposite to conventional current. On the other hand, inside a bipolar transistor, currents can be composed of both positively charged holes and negatively charged electrons.
Supplier: ABB; One of the World's biggest Multi-terminal HVDC system with Ultra High Voltage DC Transmission system (UHVDC) [44] CASA-1000: Tajikistan - Sangtuda: Pakistan - Nowshera: 750: 500: 1300: 2025: Thyr: ±500 kV Bipole HVDC with Converter Stations [45] [46] India–Sri Lanka HVDC Interconnection: Madurai - India Anurathapura - Sri ...
A block diagram of a bipolar HVDC transmission system, between two stations designated A and B. AC – represents an alternating current network CON – represents a converter valve, either rectifier or inverter, TR represents a power transformer, DCTL is the direct-current transmission line conductor, DCL is a direct-current filter inductor ...
Bipolar disorder can also involve depressive episodes, which have the same symptoms that people with major depressive disorder experience. Symptoms of a depressive episode can include:
The use of the bipolar option does not require the placement of a return electrode because the current only passes between tines of the forceps or other bipolar output device. Electrosurgery should only be performed by a physician who has received specific training in this field and who is familiar with the techniques used to prevent burns.
Not all atoms attract electrons with the same force. The amount of "pull" an atom exerts on its electrons is called its electronegativity.Atoms with high electronegativities – such as fluorine, oxygen, and nitrogen – exert a greater pull on electrons than atoms with lower electronegativities such as alkali metals and alkaline earth metals.